Question

how does the lithosphere contribute to the biosphere?
a. by regulating temperature and solar radiation
b. by absorbing carbon dioxide
c. by influencing ocean currents
d. by providing soil for plant growth

which interaction occurs between the hydrosphere and lithosphere during flooding events?
a. photosynthesis increases
b. soil quality improves
c. erosion reshapes landscapes
d. volcanic activity increases

Explanation:

• First question:
• The lithosphere is the rigid outer part of the Earth. Soil, which is part of the lithosphere, is essential for plant growth (a key part of the biosphere).
• Option a: Regulating temperature and solar radiation is more related to the atmosphere.
• Option b: Absorbing carbon dioxide is mainly done by plants (biosphere) and oceans (hydrosphere).
• Option c: Influencing ocean currents is related to the hydrosphere and atmosphere.
• Second question:
• During flooding (hydrosphere - water), erosion (water wearing away soil/rock - lithosphere) reshapes landscapes.
• Option a: Photosynthesis is a biosphere - atmosphere interaction (plants using CO₂ and sunlight).
• Option b: While flooding can sometimes deposit nutrients, it often causes soil erosion (degrading quality in many cases).
• Option d: Volcanic activity is an internal Earth (lithosphere - mantle) process, not directly related to flooding (hydrosphere - lithosphere interaction).

Answer:

1. d. By providing soil for plant growth
2. c. Erosion reshapes landscapes