Answer:
The correct answer is d all of the above
Explanation:
There are many reasons behind increasing the concentration of atmospheric carbon dioxide such as
1 Burning of fossil fuels such as coal,petroleum increases the level of atmospheric carbon dioxide.
2 Increase in Argiculture also increases the level of green house gases such as CO2.
3 Clearing of lands for increasing population and agriculture by cutting down trees also adversely effect the normal 02:CO2 ratio in the atmosphere.
Answer b
I think I’m not sure
Explanation:
The prokaryotic cell does not have a nucleus but instead they have a chromosome.<span />
She must have the resessive trait on both of her chromosomes. Withought them being on both she would be a carrier.
