B because the higher the temperature of air, the faster the molecules move, as the air is heated up, the air molecules move faster, which when the temperature is higher, the air molecules are less dense
Answer:
All plants and animals group existing together and the physical factors with which they interact is called Ecosystem
Explanation:
The geographical area where animals, plants and other beings along with atmosphere and other physical factors interact to form a life chain is known as Ecosystem. It has both living and non-living factors in it. All the factors of an ecosystem are dependent on each other.
For instance, a change in climate determines the growth of types of plants. It can be large or small, like- ponds are small ecosystem whereas ocean is a large one. Ecosystems sometimes are connected to ‘Biomes’ or land, sea or climate.
Answer:
B. Falling transportation costs
Explanation:
that makes the most sense to me
Answer:
I believe its The Nucleus because it contains the genetic material, also known as DNA, which is responsible for controlling and directing all the activities of the cell. All the RNA's needed for the cell are synthesized in the nucleus.
Explanation: