The answer is option a hope it helps
Answer:
Drinking will be unavalible
Explanation:
Floods (when it rains a lot, rivers tend to keep rising which leads to flooding )
Answer:
decreased variation in the shades of red because no form of the trait is advantageous
Explanation:
The last option also seems correct, but selections is somehow aleatory. You cannot consider "reason" as a factor.
Explanation:
Populations. Biotic and abiotic factors determine the population size of a species in an ecosystem. ... Biotic factors include the amount of food that is available to that species and the number of organisms that also use that food source.
