In science, confusion sometimes arises because a term used by scientists takes on a special meaning which conflicts with the use of the term in everyday life. For example, to physicists, speed and velocity have very particular meanings, and are not interchangeable, but in everyday conversation we freely interchange the two terms. Suggest a way that this kind of problem could be avoided.

A way this could be avoided is making sure you learn the differences and gain knowledge about particular terms that may seem alike so that you can avoid making mistakes in conversations.

Explanation:

correct answer is a. and d.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this