1.
What is erosion?
Correct Answer
C. What happens when soil or rock is carried away by water, wind, or other rocks.
Explanation
Erosion refers to the process of soil or rock being carried away by water, wind, or other rocks. This explanation accurately describes erosion as the movement and displacement of soil or rock due to natural forces. It highlights the key elements of erosion, which include the action of water, wind, or other rocks causing the soil or rock to be carried away.
2.
What is lava?
Correct Answer
C. Melted rock that comes from inside the earth.
Explanation
Lava is the correct answer because it refers to melted rock that originates from the interior of the Earth. When volcanic activity occurs, the intense heat causes rocks to melt and transform into a liquid state, resulting in lava. This molten rock then flows or erupts onto the Earth's surface, often causing volcanic eruptions and forming new land formations.
3.
What are the natural resources?
Correct Answer
A. Useful materials that come from the earth.
Explanation
The correct answer is "useful materials that come from the earth." This answer accurately defines natural resources as materials that are derived from the earth and have economic value. These resources can include minerals, water, air, soil, forests, and various energy sources such as oil, gas, and renewable energy.
4.
What does recycle mean?
Correct Answer
A. To change something so that is can be used again.
Explanation
Recycling means the process of transforming waste materials into reusable materials. It involves changing something that has already been used into a new product or material that can be used again. This helps to conserve resources, reduce waste, and minimize the impact on the environment.
5.
What are rocks made of?
Correct Answer
A. Minerals
Explanation
Rocks are made of minerals, which are naturally occurring inorganic substances with a specific chemical composition and crystal structure. Minerals are the building blocks of rocks and give them their characteristic properties such as hardness, color, and texture. They are formed through various geological processes such as cooling and solidification of molten material, precipitation from solution, or deposition from organic remains. Therefore, minerals are the correct answer as they are the fundamental components of rocks.
6.
-------- are natural resources that can be used for fuel.
Correct Answer
C. Oil, coal, and gas
Explanation
Oil, coal, and gas are natural resources that can be used for fuel. These resources are known as fossil fuels and are formed from the remains of ancient plants and animals that have been subjected to heat and pressure over millions of years. They are non-renewable resources and are commonly used for generating electricity, powering vehicles, and heating homes. Despite their effectiveness as fuel sources, the extraction and burning of fossil fuels also have significant environmental impacts, such as air pollution and greenhouse gas emissions.
7.
------is what happens when wind or water carries soil or rocks away.
Correct Answer
D. Erosion
Explanation
Erosion is the process in which wind or water carries away soil or rocks. It occurs when the force of wind or water is strong enough to dislodge and transport particles of soil or rocks from one place to another. This natural process can be caused by factors such as wind, rain, waves, or glaciers, and it can result in the formation of landforms such as valleys, canyons, or deltas. Erosion plays a crucial role in shaping the Earth's surface over time.
8.
We can use what natural resources to build a home with and burn for fuel?
Correct Answer
A. Wood from forests
Explanation
Wood from forests can be used to build a home and can also be burned for fuel. Wood is a renewable resource that can be sustainably harvested from forests. It is commonly used in construction due to its strength and durability. Additionally, wood can be burned as a source of heat and energy, making it a versatile and accessible fuel option.
9.
Which of these are features of the earth?
Correct Answer
D. All of the above.
Explanation
The features of the earth include hills and mountains, rivers, lakes, oceans, grass fields, and forests. All of these options are mentioned in the given choices, making "all of the above" the correct answer.
10.
What is melted rock in the inside of the earth called?
Correct Answer
B. Magma
Explanation
Melted rock inside the Earth is called magma. Magma forms beneath the Earth's surface and can rise to the surface through volcanic activity. When magma reaches the surface and erupts from a volcano, it is then called lava. Basalt and granite are types of igneous rocks that form from the cooling and solidification of magma or lava.