Question 24
Which of the following best describes the soil’s topmost layer, Horizon A?
Editorial review: explain the scientific issue and assess whether the choices give a unique supported answer.
A. This layer is mostly comprised of sand and clay.
B. This shelf covers the shore down to the deep ocean.
C. This layer is dark in color due to the high concentration of minerals, thus nurturing plant growth.
D. This layer mostly consists of large objects such as stones and rocks.
E. This layer ranges down to the deepest parts of the earth’s crust.
Editorial review: explain the scientific issue and assess whether the choices give a unique supported answer.
A. This layer is mostly comprised of sand and clay.
B. This shelf covers the shore down to the deep ocean.
C. This layer is dark in color due to the high concentration of minerals, thus nurturing plant growth.
D. This layer mostly consists of large objects such as stones and rocks.
E. This layer ranges down to the deepest parts of the earth’s crust.