I think B sorry if I’m wrong
<span>Its when your oxygen level drops down below normal levels while you are asleep. My sister was diagnosed 10 years ago with several sleep apnea and had his tonsils, adenoids, and some of her soft pallet removed. For her and would stop breathing for up to forty or twenty seconds while she was asleep which would cause her oxygen level to drop in the 60 seconds. This is a serious disorder that can lead to death but if not treated properly as welll</span>
Answer:
In the given case, the upsurge in the size of the squirrel population would have taken place due to genetic variation and more availability of food. Genetic variation plays the most important role in the process of natural selection and is the basic mechanism of evolutionary change. Genetic variation refers to the variation in DNA between the individuals.
Thus, it can be said that in the given case, the amount of food, which was less in the past may have got increased, and the squirrels of the coming generations would have demonstrated higher levels of genetic variation than shown by the previous generations. Thus, the number of squirrels got increased in the population.
Answer:
B
Explanation:
The green house effect is a phenomenon resulting from the release of air pollutant gases including carbon dioxide.
photosynthesis works by absorbing carbon dioxide gas and water as raw materials for energy & glucose production.
therefore one can conclude that by removing one of the green house gases (pollutants) we can counteract (go against) it.
C. Reduced sediment flow.