Question

8.

Which is the best summary of the text?
A. Acid eats away at rocks over time and
creates gaps that cause the landscape to
change.
B. Many mountains look different today tha
they did years ago.
C. There are four forces that cause
weathering and erosion and cause the
landscape to change.
D. Erosion is the movement of rocks to othe
places.

Answer 1

The best summary is that four forces of weathering and erosion change the landscape, as they shape Earth's surface and increase dissolved minerals in water, supporting aquatic life.

Step-by-step explanation:

The best summary of the text that discusses weathering, erosion, and sedimentary rocks is option C, which states that there are four forces that cause weathering and erosion, leading to changes in the landscape. These processes contribute to the transporting of fragments and the shaping of the Earth's surface. Examples include river valleys being carved out by the action of water, and cliffs and caves on coastlines being formed by weathering and erosion. The weathering process also increases the content of dissolved minerals in water, which is important for aquatic life.

Answer 2

The best summary of the text is D. Erosion is the movement of rocks to other places.

What des the text show ?

The text discusses soil erosion and its causes and effects. It explains that soil erosion is the process by which the top layer of soil is washed away due to external factors, primarily rainwater and wind. During rains, the force of rainwater disintegrates the soil, causing it to flow away with muddy water.

This topsoil is rich in minerals and nutrients, and continuous erosion can lead to land becoming infertile. Additionally, strong winds can also carry soil away, especially in the absence of trees with deep-rooted systems to hold the soil in place. Other contributing factors to soil erosion include overgrazing by cattle and faulty farming techniques.

The text is:

Soil Erosion: Causes and Effects

Soil erosion is the process in which the top layer of soil is washed away due to several external factors. Rainwater and wind are the most common factors that contribute to soil erosion.

During rains, the force of rainwater causes soil to disintegrate. Rainwater collects in small, muddy ponds and begins to flow with more rain falling from above. As this muddy water flows, it

carries the topmost layer of soil away with it. This topsoil is rich in minerals and nutrients. Continuous soil erosion by rainwater can cause land to become infertile.

Similarly, strong winds also carry soil away. Trees hold soil in its place as their roots penetrate deep into the ground. If there are no trees, soll becomes loose and can be easily washed

away by rain or wind. According to the Center for Science, the problem of soil erosion becomes acute if there is no vegetation along the banks of rivers and waterways to hold the soil. Now

there is one more reason to stop or reduce the cutting of trees.

Other causes of soil erosion include overgrazing by cattle and faulty farming techniques.

Soll erosion leads to the loss of the most fertile layer of soil. In addition, blowing wind and flowing water can cause sown seeds to be shifted, buried, or washed away from their place.