Question

which sphere interacts with the biosphere by providing essential nutrients for plant growth?
a. lithosphere
b. none of the answers
c. hydrosphere
d. atmosphere

which sphere is directly involved in the formation of soil that supports plant growth?
a. lithosphere
b. atmosphere
c. biosphere
d. hydrosphere

Explanation:

• First question: The lithosphere (the rocky outer part of the Earth) contains minerals and nutrients in the soil that plants absorb for growth. The hydrosphere (water - related parts) mainly provides water, and the atmosphere provides gases like carbon dioxide.
• Second question: Soil formation involves the breakdown of rocks (lithosphere). The atmosphere, biosphere, and hydrosphere play roles in weathering and erosion processes related to soil formation, but the lithosphere is directly involved as it is the source of the rock material.

Answer:

1. a. Lithosphere
2. a. Lithosphere