Answer: emigration or increase in death rate
Explanation:
Many factors can modify the animal population in a specific area.
Amphibian populations are affected mostly by changes in temperatures, altered dry season rainfall, and modified leaf litter depth.
Considering the options provided, only emigration and an increase in death rate could explain the decrease of the frog population.
Immigration and an increased birth rate would result in the population growing, not decreasing.
The answer is true. I hope I helped.
They did this because the soil was more fertile while it got harder to farmer further West
Answer:
The first one I think
Explanation:
The United States gave Spain $5 million; Spain ceded its claims to Florida and Oregon.
First, they wanted to stay out, then they started to help England and France, and finally when Japan attacked they totally got involved.