Which statement is correct?(1 point)
Responses
There is a thick layer of humus in dry deserts.
There is a thick layer of humus in dry deserts.
There is a thin layer of topsoil in temperate areas.
There is a thin layer of topsoil in temperate areas.
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 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 temperate areas.
There is a thin layer of topsoil in tropical rain forests. This statement is correct.
The correct statement is: "There is a thin layer of topsoil in tropical rain forests."
To determine the correct statement, we need to understand the definitions of the terms used in each statement.
Humus refers to the dark, organic matter formed from the decomposition of plant and animal materials. It is typically found in the upper layers of soil.
Topsoil, on the other hand, refers to the uppermost layer of soil, consisting of a mixture of organic matter, minerals, and nutrients. It is the layer where most of the plant roots are present and where most of the biological activity takes place.
Now, let's analyze the statements:
1. "There is a thick layer of humus in dry deserts."
Dry deserts are characterized by arid conditions with little precipitation, making it difficult for the organic matter to accumulate and decompose. Therefore, it is unlikely for dry deserts to have a thick layer of humus. This statement is probably incorrect.
2. "There is a thin layer of topsoil in temperate areas."
Temperate areas generally have moderate rainfall and temperature, which supports the growth of vegetation. As a result, there is a higher likelihood of a thin layer of topsoil in these regions. This statement is probably correct.
3. "There is a thin layer of topsoil in tropical rain forests."
Tropical rain forests are known for their lush vegetation and abundant rainfall. Despite the favorable conditions, the constant recycling of organic matter in these ecosystems prevents the formation of a significant layer of topsoil. This statement is probably correct.
4. "There is a thick layer of humus in cold deserts."
Cold deserts experience low temperatures and limited precipitation, which are not conducive to the accumulation of organic matter. Therefore, it is unlikely for cold deserts to have a thick layer of humus. This statement is probably incorrect.
Based on the analysis, the correct statement is: "There is a thin layer of topsoil in tropical rain forests."