Resources of the Earth：練習問題

Which of the following is an example of a renewable resource?

The Earth's structure consists of several layers. Which option correctly lists the three main layers from the outermost to the innermost?

Fossil fuels like coal and oil are formed from the remains of ancient organisms over millions of years. Which statement accurately describes the primary process that leads to the formation of coal?

Before humans can safely drink it, what process is often necessary for freshwater?

Rocks formed from the cooling and solidification of molten magma or lava are known as:

Name one natural resource that humans use for energy.

Name one way humans can show responsibility in using Earth's resources.

Explain why a tree that falls and decays on a forest floor will not turn into coal, and identify the primary environmental condition missing for coal formation.

A gardener is choosing soil for a plant that needs a lot of nutrients but also roots that can breathe.
a) Why is loam often preferred over pure clay or pure sand for this purpose? (2 points)
b) Describe one simple test the gardener could perform to determine if a soil sample has a high sand content. (2 points)

Observe the diagram of the Rock Cycle.
a) Describe the specific conditions required to turn sedimentary rock into metamorphic rock. (2 points)
b) If metamorphic rock is pushed deep into the Earth and melts, what type of rock is formed when it eventually cools and solidifies? (1 point)
c) Explain why fossils are almost exclusively found in sedimentary rocks and not in the other two types. (3 points)