The direct effects of increased carbon dioxide (CO2) on plant growth refers to the change in plant grow with the levels of temperature, precipitation, evaporation and growing season at their present values. The indirect effects include the results of any changes in the other variables which affect plant growth that come as a result of the effect of increased CO2 on global climate.
Tropopause is the boundary between the troposphere and stratosphere.
Explanation:
- Tropopause marks the transition region between troposphere and stratosphere.
- As we move up from the Earths surface , the temperature gets colder but when we reach the tropopause the temperature becomes constant and the temperature does not fall further.
- It is at a height of about 9Km at the polar region while at a height of 17 Km at the equitorial region.
I think the correct answer from the choices listed above is option A. The conclusion that the fossil record support is that species have changed over time. It supports the theory of evolution rather than the creation. Hope this answers the question.
<span>Market demand for goods associated with a species.</span>
