Question

which of the following statements about the interaction of earth’s systems is true?
a. the interaction between earth’s systems is limited to a response to human activity.
b. the earth’s system interact using positive feedback only.
c. the earth’s systems interact using negative feedback only.
d. all of the earth’s systems interact with each other.
please select the best answer from the choices provided

○ a
○ b
○ c
○ d

Explanation:

• Option A: Earth's systems interact naturally (e.g., water cycle, rock cycle) without human activity, so A is false.
• Option B: Earth's systems use both positive and negative feedback (e.g., ice - albedo feedback can be positive, and predator - prey relationships in ecosystems can involve negative feedback), so B is false.
• Option C: As explained above, Earth's systems use both types of feedback, not just negative, so C is false.
• Option D: Earth's systems (geosphere, hydrosphere, atmosphere, biosphere) all interact with each other. For example, the hydrosphere (water) interacts with the geosphere (eroding rocks), the atmosphere (providing water vapor) interacts with the hydrosphere (forming clouds and precipitation), and the biosphere (living organisms) interacts with all other spheres. So D is true.

Answer:

D. All of the Earth's systems interact with each other