Rocks are made of one or more MINERALS
The answer is a to the question
Good evening Aixa,
An experiment is designed so that you can observe the differences between the experimental group and the control group.
The experimental group is the group of specimens you're exposing to the experiment and the control group is a separate group of specimens that is not being exposed to the experiment, but are also being observed.
-Hope this helps!
Geographical advantages produced a more well-developed society. Egypt, for example, had great natural barriers such as deserts and cataracts. Due to their good geographical location, they created a more advanced civilization. Thus, geography is linked to history because they both work together to produce a better society.
The endocrine system releases hormones into the bloodstream, most of which are released by the pituitary gland
i believe that to be correct