Answer is - american civil war
Answer:
from the sun
Explanation: Energy enters the ecosystem from the Sunand exits after the organisms have taken as much as they need. Organisms release energy back into the biosphereas heat. Energy also enters the ecosystem from the interior of the Earth. It is usually in the form of heat, not the electromagnetic radiation from the Sun.
The endocrine system or the skin (:
Answer:
Yes, if the mother swan pushes a third baby swan in front of her, work being done on the third baby.
Explanation:
Work is defined as the displacement covers by the body in the direction of the applied force. Work will be done on the body if a person pulls or pushes the other body or object. So according to the definition of work, if the mother swan pushes the third baby and the baby covers some distance away from the mother swan so we can say that work being done on the third baby.
Answer:
Almost all rocks made of minerals, but different rocks contain different mixtures of minerals.
Explanation:
Rocks are composed of grains of minerals, which are homogeneous solids formed from a chemical compound arranged in an orderly manner. The aggregate minerals forming the rock are held together by chemical bonds.