Answer:
1. a 2. d 3. b
Explanation:
1. Changes in the atmosphere causes changes in the hydrosphere which affects the biosphere.
2. Hydrosphere, geosphere, atmosphere
3. Melting glacier provides fresh water for plants and animals.
Answer:
Sunlight and Chlorophyll
Explanation:
A physical change occur when objects or substances undergo a change that does not change in which the composition of a substance changes or one or more substances combine or break up from new substances.
The cell membrane of the plant and animal cells help them to maintain homeostasis. It regulates the particles that move in or outside the cell. All cell work in integrity to maintain homeostasis. The organelles also contribute to this process. Vacuole stores food for this, cell membrane acts as a barrier for foreign materials, mitochondria provide the cell with its energy, nucleus controls all the activity, cell wall protects the cell, cytoplasm maintains the integrity of the cell, ribosomes, and endoplasmic reticulum synthesize and transport the proteins required by the cell.
Trace fossils provide us with indirect evidence of life in the past, such as the footprints, tracks, burrows, borings, and feces left behind by animals, rather than the preserved remains of the body of the actual animal itself.