What are (i) two topics that are likely to be studied by biologists and (ii) two areas of scientific study that would fall outside the realm of biology?

Biologists are the people who study and research about most of the things that are related to living things, including plants, animals, bacteria etc.

Example of topics they study include "ecology", like how different living organisms relate and interact with each other, or "cell biology", with small topics like how protein synthesis works or what is DNA or RNA.

Area of scientific studies that usually fall outside biology includes "astronomy" the study of space, or" chemical bondings", like how does elements react with each other.

Nimbostratus is the correct answer.
explanation: nimbostratus clouds are the type of clouds that are mostly likely present on gray, rainy day. these clouds produce continuous rain, snow and there is no thundering or lightening either.