In general, chemicals enter ecosystems through which two spheres? a. atmosphere and hydrosphere b. biosphere and lithosphere d. biosphere and hydrosphere

The appropriate answer is b. the biosphere and the lithosphere . The biosphere represents that region of the earth occupied by living organisms. Humans are mainly responsible for the excess release of chemicals in the biosphere. Other life processes also release chemicals, processes such as respiration and photosynthesis. The lithosphere releases chemicals through processes such as weathering and volcanic activity.

The geographic feature in the westernmost corner of kenya is answer: the great rift vally

Answer any resource, such as wood or solar energy, that can or will be replenished naturally in the course of time;