Which statement is correct?(1 point)
Responses
There is a thin layer of topsoil in tropical rain forests.
There is a thin layer of topsoil in tropical rain forests.
There is a thick layer of topsoil in tropical rain forests.
There is a thick layer of topsoil in tropical rain forests.
There is a thick layer of humus in dry deserts.
There is a thick layer of humus in dry deserts.
There is a thick layer of humus in cold deserts.
There is a thick layer of humus in cold deserts.
The correct statement is: "There is a thin layer of topsoil in tropical rain forests."
To determine which statement is correct, we need to understand the definitions of terms involved.
Topsoil refers to the uppermost layer of soil that is rich in organic matter and nutrients. It is essential for plant growth.
Humus, on the other hand, is a dark, organic material that forms as a result of the decomposition of plant and animal matter.
Tropical rainforests are characterized by heavy rainfall and high temperatures, which result in a rapid decomposition of organic matter. This decomposition leads to the continuous recycling of nutrients, causing the topsoil layer to be relatively thin. Therefore, the correct statement is:
There is a thin layer of topsoil in tropical rainforests.
Dry deserts typically have little rainfall, which limits the decomposition of organic matter. As a result, humus accumulation is limited. Therefore, the correct statement is:
There is not a thick layer of humus in dry deserts.
Cold deserts, such as those found in Arctic regions, experience freezing temperatures, which slow down the decomposition process. As a result, organic matter accumulates, leading to thicker layers of humus. Therefore, the correct statement is:
There is a thick layer of humus in cold deserts.