موضوع تعبير باللغة الانجليزية عن ثاني اكسيد الكربون Carbon dioxide

Carbon dioxide

Carbon dioxide (CO2) is a chemical compound. It is a gas at room temperature. It is made of one carbon and two oxygen atoms. People and animals release carbon dioxide when they breathe out. Also, every time something organic is burnt (or a fire is made), it makes carbon dioxide. Plants use carbon dioxide to make food. This process is called photosynthesis.[1] The properties of carbon dioxide were studied by the Scottish scientist Joseph Black in the 1750s.

Carbon dioxide is a greenhouse gas.[2] Greenhouse gases trap heat energy. Greenhouse gases change the climate and weather on our planet, Earth. This is called climate change. Most scientists think that greenhouse gases are causing global warming, the rise of Earth's surface temperature.

موضوع تعبير باللغة الانجليزية عن جذر النبات Root

The roots of a plant is the part that is usually buried in the soil. Roots are not always under the soil, though–sometimes roots can be above the ground. This is called an aerial root.

Also, stems can sometimes be under the soil (potatoes, for example). Roots do not have leaves, and are different from stems inside.

Plants need their roots especially for three reasons: The roots take water and nutrients, a sort of food, from the soil. They also often store this food. And they fix the plants to the ground.

However, most plant roots do not work at their best unless they have help from fungi. The symbiosis between roots and fungus is known as mycorrhiza.[1]

There are two sorts of root systems:

the taproot system: there is one very big root that goes down into the ground, and many smaller roots that come out of it
the diffuse root system: there are many roots that go in all directions
Some roots go very deep into the ground. One root that was found in Arizona, USA, was 60 m below the surface.

Roots are also very strong. Some tree roots can destroy stones.Roots are not green because the cells have no chlorophyll.

موضوع انشائي باللغة الانجليزية عن ساق النبات Plant stem

A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaves, flowers, cones or other stems etc. The other main structural axis of plants is the root. In most plants, stems are above the soil surface but some plants have underground stems called stolons or rhizomes.

Stems have four main functions which are:[1]

Support for leaves, flowers and fruits. The stems keep the leaves in the light and provide a place for the plant to keep its flowers and fruits.
Transport of fluids between the roots and the upper parts in the xylem and phloem.
Storage of nutrients.
The production of new living tissue. Stems have tissue called the meristem which contains dividing cells. This produces new living tissue each year.
The normal life span of plant cells is one to three years. Much of the longer-lasting tissue in trees consists of cells which are no longer living. Bark and xylem vessels are examples of this.

موضوع تعبير باللغة الانجليزية عن نبات متسلق vine

A vine is a climbing plant which use stems or runners. These runners trail on the ground, and will climb up when it is possible. It is a growth habit or life habit which makes use of trees to reach light in natural habitats.

In the United Kingdom, the term "vine" applies almost exclusively to the grapevine, whereas the term "climber" is used for all climbing plants.[1] The grapevine, genus Vitis, carries berries which can be made into wine. In the United States, all climbing plants are called vines or ivies or sometimes creepers (like the Virigina Creeper).

Most vines are flowering plants. These may be divided into woody vines or lianas, such as wisteria, kiwifruit, and common ivy, and herbaceous (nonwoody) vines, such as morning glory.

موضوع تعبير باللغة الانجليزية عن الشجيرة shrub or bush

A shrub or bush is a category of plants. A tree usually has one stem, which at some height has branches. A shrub can have multiple stems from the bottom up. Usually, bushes do not grow as tall as trees, very often they are less than 10–12 m tall.

Very many plants can be either shrubs or trees, depending on the growing conditions. Small, low shrubs such as lavender, periwinkle and thyme are often termed subshrubs. Shrubs can be either deciduous or evergreen.

A Shrubbery is a garden with shrubs as the main feature.

موضوع انشاء باللغة الانجليزية عن الاعشاب Herbs

Herbs are plants that are grown either as a food (usually as a condiment), or because they have some use in treating diseases (or making them better), or for spiritual reasons (for example, their smell). Some herbs may act as an aphrodisiac.

The word herb comes from the Latin word herba, meaning grass, green stalks, or blades. Botanists use the word to mean any plant with soft, succulent tissues. But many people use the word to mean only herbs with some economic value.

Herbs are small plants that have a fleshy or juicy stem when they are young. The stems of some herbs develop hard, woody tissue when they grow old.

Most herbs are perennials. This means that the tops of the plants die each growing season, but the roots remain alive and produce new plants year after year.

Some herbs are annuals. They live for only one growing season and must be raised from seed each year.

موضوع انشاء باللغة الانجليزية عن الاشجار trees

A tree is a tall plant with a trunk and branches made of wood. It can live for many years. The four main parts of a tree are the roots, the trunk, the branches, and the leaves.

The roots of a tree are usually under the ground. One case for which this is not true are the roots of the mangrove tree.[1] A single tree has many roots. The roots carry food and water from the ground through the trunk and branches to the leaves of the tree. They can also breathe in air.[1] Sometimes, roots are specialized into aerial roots, which can also provide support, as is the case with the Banyan tree.

The trunk is the main body of the tree. The trunk is covered with bark which protects it from damage. Branches grow from the trunk. They spread out so that the leaves can get more sunlight.

The leaves of a tree are green most of the time, but they can come in many colours, shapes and sizes. The leaves take in sunlight and use water and food from the roots to make the tree grow, and to reproduce.

Trees and shrubs take in water and carbon dioxide and give out oxygen with sunlight to form sugars. This is the opposite of what animals do in respiration. Plants also do some respiration using oxygen the way animals do. They need oxygen as well as carbon dioxide to live.

تعبير باللغة الانجليزية عن الكواكب planets

A planet according to modern philosophy is a large object such as Jupiter or Earth that orbits a star. It is smaller than a star, and it does not make light. Planets are ball-shaped (spheres). Objects that orbit planets are called moons. There are eight planets in the Solar System. Pluto used to be known as a planet, but in August 2006, the International Astronomical Union decided it was a dwarf planet instead. There are four more known dwarf planets in the Solar System, Ceres, Makemake, Eris and Haumea.

The name "planet" is from the Greek word πλανήτης (planetes), meaning "wanderers", or "things that move". Until the 1990s, people only knew of those in the Solar System. As of June 2011, we know of 563 other planets.[1] All of these newly found planets are orbiting other stars: they are extrasolar planets. Sometimes people call them "exoplanets".

موضوع انشاء باللغة الانجليزية عن كيفية خلق الشمس

Scientists think that the Sun started from a very large cloud of dust and small bits of ice 4.6 billion years ago. At the center of that huge cloud, some of the material started to build up into a ball called the Sun. Once this Sun got big enough, fusion reactions inside it caused that ball make heat and for it to shine.

The light that was made from fusion in the Sun pushed away all the rest of the cloud from itself, and the planets formed from the rest of this cloud.

موضوع تعبير عن الشمس باللغة الانجليزية

The Sun is the star at the center of the Solar System. It is seen in the sky and gives light to the Earth. When the Sun is in the sky, it is day. When the Sun is not in the sky, it is night. The planets, including Earth, go around it.

The Sun gives off energy as electromagnetic radiation. That includes light, infra-red energy (heat), ultraviolet light and radio waves. It also gives off a stream of particles, which reaches Earth as "solar wind". The source of all this energy is the reaction in the star which turns hydrogen into helium and makes huge amounts of energy.

The Sun is a star like many others in our Milky Way galaxy. It has existed for a little over 4.5 billion years, and is going to continue for at least as long. The Sun is about a hundred times as wide as the Earth. It has a mass of 1.9891×1030 kg, which is 333,000 times the mass of the Earth.[12]

تعبير باللغة الانجليزية موضوع عن التربة soil

Soil (sometimes called dirt) is the combination of rock, mineral fragments (pieces), organic matter (dead and living things), water, and air. It is mostly made up of grains of rock weathered by wind, rain, sun, snow, etc., and varying amounts of humus. The type of soil depends on the mix of humus and on the size of the grains of the rock. The grains can be very small and smooth, such as clay, or they can be larger, like grains of sand or even a piece of gravel. [1] Soils are important to our ecosystem for six main reasons: first, soils are a place for plants to grow; second, soils control the speed and the purity of water that moves through them; third, soils recycle nutrients from dead animals and plants; fourth, soils change the air that surrounds the earth, called the atmosphere; fifth, soils are a place to live for animals, insects and very small living things called microorganisms; sixth, soils are the oldest and the most used building materials.[2] The climate is very important when soil is made. Soil from different climates can have very different qualities the types of soil varies from .[3]

تعبير باللغة الانجليزية عن افضل هواية

The most enjoyable hobby in my opinion is the hobby that makes you feel better or feel change whatever the change's kind. Reading is a hobby which helps a lot in life. This practice of reading has taken a back seat with the development of televisions and the internet. Children in the present times are all the time hooked to T.V.sets and the computers. Parents should make an effort of introducing their children to the world of books.

This should be started from a very young age. In fact children are able to understand even if they are not able to speak. You should start showing them picture books on animals, flowers and fruits. These are the things they can easily identify and they will be happy to browse through these books.

تعبير باللغة الانجليزية عن امريكا الجنوبية South America

South America is the continent to the south of North America.[1][2] These two continents are separated by the Panama Canal. It is bounded on the west by the Pacific Ocean and on the east by the Atlantic Ocean.

South America is attached to Central America at the boundary of Panama.[3] Geographically[4] all of Panama – including the part east of the Panama Canal in the isthmus – is usually included in North America alone.[5][6][7] and among the countries of Central America.[8][9] This long continent is from the Caribbean Sea almost to Antarctica.[3] It separates the Atlantic and Pacific Oceans.[3] South America can be divided into four parts.[3] The Caribbean Republics include Colombia, Venezuela, Guyana, Suriname, and French Guiana.[3] The Andean Republics include Bolivia, Chile, Ecuador, and Peru. The River Plate Republics have Uruguay, Paraguay, and Argentina. Brazil, the largest country, is a alone.

Climate
The climate in most of South America is usually tropical.[3] It is humid (dry) tropical and tropical savanna in the north. It is humid subtropical in the southeast. Rainfall is different depending on the place. The Atacama Desert is one of the driest places in the world. In the Amazon basin, the average rainfall is 2,000 millimetres (79 in). The Brazilian plateau receives rainfall between 1000 and 2000 mm.[3] Temperatures can also be very different. The usual temperature in the mountains is 15 °C (59 °F) degrees, while temperatures in the Tropics can be more than 38 °C (100 °F) degrees.[3]

تعبير باللغة الانجليزية عن دولة الارجنتين Argentine

Argentina (officially called Argentine Republic) is a country in South America. Argentina is the second-largest country in South America and the eighth-largest country in the world.

Spanish is the language most people speak and the official language, but many other languages are spoken. Some of these are German, Guarani, Mapudungun and Quechua and even Welsh in Patagonia.

The capital city of the Argentina is Buenos Aires, one of the largest cities in the world, in eastern Argentina. In order by number of people, the largest cities in Argentina are Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán, Mar del Plata, Salta, Santa Fe, and Bahía Blanca.

Argentina is between the Andes mountain range in the west and the southern Atlantic Ocean in the east and south. It is bordered by Paraguay and Bolivia in the north, Brazil and Uruguay in the northeast, and Chile in the west and south. It also claims the Falkland Islands (Spanish: Islas Malvinas) and South Georgia and the South Sandwich Islands.

تعبير موضوع عن الدولة بالانجليزية country

In geography, a country is a political division. It is often a sovereign territory. The term is most commonly used for both state and nation, and also with government. For example, Liechtenstein is a country. The United Nations recognises lots of countries.

تعبير انشائي باللغة الانجليزية عن الولايات المتحدة الامريكية

The United States of America (USA), commonly referred to as the United States (US), America, or simply the States is a country in North America. It is made up of 50 states, a federal district, and five territories. The United States was on the winning side of two world wars (World War I and World War II) and became one of the world's superpowers. It is famous for its influence over finance, trade, culture, military, politics, and technology.
Government

The United States is a federal republic. The federal government is set up by the Constitution. There are three branches of government. They are the executive branch, the legislative branch, and the judicial branch. State governments work very much like the federal government.

Executive branch[change | edit source]
The executive branch is the part of the government that enforces the law. Members of the U.S. Electoral College elect a president who is the leader of the executive branch, as well as the leader of the armed forces. The president decides whether or not the bills that the Legislative branch passes will become laws, and the president may veto a bill. The President may also make "executive orders" to ensure that people follow the law. Two of the most famous executive orders were President Abraham Lincoln's Emancipation Proclamation and President Dwight D. Eisenhower's order to send soldiers to allow the Little Rock Nine into a school. The president is in charge of many departments that control much of the day-to-day business of government. For example, Department of Commerce makes rules about trade and business. The president chooses the heads of these departments, and also nominates judges at the federal (nation-wide) level. However, the Senate, part of the legislative branch, must agree with all of the people the president chooses. The president may serve two 4-year terms.

Legislative branch[change | edit source]


The west side of the United States Capitol, which is home to the United States Congress
The legislative branch is the part of the government that makes laws. The legislative branch is called Congress. Congress is divided into two "houses".

One house is the House of Representatives. The House of Representatives is made up of Representatives, who are each elected by voters from an set area within a state. The number of Representatives a state has is based on how many people live there: the more people a state has, the more representatives it gets. Every 10 years, the U.S. Census Bureau conducts a census, or count, of the population of the United States. States gain or lose Representatives based on their total population as shown by the census. Representatives serve two-year terms. The total number of representatives today is 435. The leader of the House of Representatives is the Speaker of the House, who is also the person who would become president if the president and vice president were unable to serve.

The other house is the Senate. In the Senate, each state is represented equally, by two senators. Because there are 50 states, there are 100 senators. Before the President makes treaties or appoints officials, the Senate must approve them. Senators serve six-year terms. The Vice President of the United States serves as president of the Senate, but may only cast votes in order to break a tie vote. In practice, the vice president is usually absent from the Senate, and a senator is selected to serve as president pro tempore, or temporary president, of the Senate.

Representatives and senators propose laws, called "bills", in their respective houses. A bill may be voted upon by the entire house right away or may first go to a small group of members of that house, known as a committee, which may recommend a bill for a vote by the whole house. If one house votes to pass a bill, the bill then gets sent to the other house; if both houses vote for it, it is then sent to the president, who may sign the bill into law or veto it. If the president vetoes the bill, it is sent back to Congress. If Congress votes again and passes the bill with at least a two-thirds majority, the bill becomes law and cannot be vetoed by the president.

Under the American system of federalism, Congress may not make laws that directly control the states; instead, Congress may use the promise of federal funds or extenuating circumstances, such as national emergencies, to encourage the states to follow federal law. This system is both complex and unique.

Judicial branch[change | edit source]
The Judicial Branch is the part of government that interprets what the law means. The Judicial Branch is made up of the Supreme Court and many lower courts. If the Supreme Court decides that a law is not allowed by the Constitution, the law is said to be "struck down" and is no longer a valid law. The Supreme Court is made up of nine judges, called justices, who are nominated by the President and confirmed by the Senate. One of these justices, called the chief justice, heads the court. A Supreme Court justice serves until he or she dies or resigns (quits in the middle of his or her term). When that happens, the president nominates someone new to replace the justice who left. If the Senate agrees with that choice, the person becomes a justice. If the Senate does not agree with the president's choice, then the president must nominate someone else.

Famous court cases such as Marbury v. Madison (which was decided in 1803) have firmly established that the Supreme Court is the ultimate interpreter of the United States Constitution and has the power to strike down any law that conflicts with it.[10]

تعلم الفرنسية أسماء الاعداد والارقام الى مائة

مرحبا بمتعلمي اللغة الفرنسية

في هذا الدرس سوف نتعلم اساسيات الفرنسية

كيفية استخدام المفردات الاكثر استخداما في الجمل

اسماء الاعداد والارقام الى مائة بالفرنسية, منتدى تعليم الفرنسية

شات انجليزي , محادثات , قصص وروايات انجليزية 

تعلم الفرنسية أسماء العد والحساب

مرحبا بمتعلمي اللغة الفرنسية

في هذا الدرس سوف نتعلم اساسيات الفرنسية

كيفية استخدام المفردات الاكثر استخداما في الجمل

اسماء العد والحساب بالفرنسية, منتدى تعليم الفرنسية

شات انجليزي , محادثات , قصص وروايات انجليزية 

تعلم الفرنسية أسماء الافعال الشائعة

مرحبا بمتعلمي اللغة الفرنسية

في هذا الدرس سوف نتعلم اساسيات الفرنسية

كيفية استخدام المفردات الاكثر استخداما في الجمل

اسماء الافعال الشائعة بالفرنسية, منتدى تعليم الفرنسية

شات انجليزي , محادثات , قصص وروايات انجليزية 

تعلم الفرنسية أسماء صفات الشخصية

مرحبا بمتعلمي اللغة الفرنسية

في هذا الدرس سوف نتعلم اساسيات الفرنسية

كيفية استخدام المفردات الاكثر استخداما في الجمل

اسماء صفات الشخصية بالفرنسية, منتدى تعليم الفرنسية

شات انجليزي , محادثات , قصص وروايات انجليزية