Answer:
Ozone
Explanation:
Ozone is considered a pollutant in the troposphere, but in the stratosphere it is essential to life on earth because it absorbs biologically harmful UV radiation. The mesosphere and the thermosphere are two additional atmospheric layers above the stratosphere.
Answer:
A I think sorry if its wrong
Answer:
D. Gross primary productivity is the total amount of solar energy captured by producers through photosynthesis over time.
Explanation:
The gross primary productivity of an ecosystem represents the rate at which the producers of the system capture the solar energy so that they can perform the process of photosynthesis. Therefore, GPP is the total amount of photosynthetic energy captured per unit area over a given time period. Producers consume the part of the GPP for their own respiration and maintenance. Therefore, gross primary productivity is the sum total of the growth of producers per unit area per unit time and the energy used by them for respiration.
Answer:
Steps are down below
Explanation
1. A small grain of pollen goes onto the stigma
2. Insects go into flowers and brush against the anther and is coated with pollen.
3. Pollen may fall onto the stigma of the next flower
4. Pollen falls onto the stigma of next flower
5. A small seed forms in the ovary of that plant
B. speed up the reuptake of dopamine and norepinephrine