Answer:
B. All of these are drivers
Explanation:
The populations of lot of amphibians, with rare exceptions, are constantly on the decline around the world. The main reason behind this is the human activity, as it has caused lot of changes, pollution, and dangers for the amphibian populations, which has led lot of amphibians to be on the verge of extinction.
The pollution, especially of the waters, has been a major factor for the decline of the amphibian population. Lot of very toxic chemicals have made the water unsuitable for living and poisonous, which systematically killed off the amphibian populations.
The habitat loss, as with any other group of animals, has left the amphibians without places to live. They have been left without their shelters, food sources, mating grounds, and they have started to die out.
The invasive species, especially the predatory ones, have also had big negative impact. The amphibians didn't had any defense mechanism against the introduced predators, so they were easy prey and their numbers rapidly went down.
Straw and mud or clay, or otherwise called adobe (uh-dough-bee)
Answer: I think the answer is C
Explanation: It is not B because if they moved closer to all of the resources such as water food and shelter then that wouldn't be a bad thing for them, It is also A not because if they did move away from large factories then that would be technically a good thing so the kids in danger of dangerous things, and it is also not D because if they were to move near the center of a country then they can start their own farms. So therefore my answer is C because if they did this then they wouldn't have very many natural resources to rely on.
I HOPE THIS HELED YOU OUT! IF NOT SO SORRY!!!
C IT DEPENDS ON A VARIETY OF FACTORS