Answer:
Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.
Explanation:
(if you need a not googled answer)- Igneous rocks are cooled or sollidified lava/ magma.
The Indian Ocean is the ocean that is east of Africa and west of Australia.
Illustrate has a couple of meanings. First, illustrate means to explain something with pictures, charts, etc. Second, illustrate means to state as an example of something.
If the reservoir has a dam, then it is A. But since your asking about just a reservoir, then the answer is B. If you think about it, a reservoir is almost like a lake, and it can overflow as well.