6. Geologists in Egypt and Ethiopia are comparing rock samples from rocks found in the two countries. They are sharing information about the rocks to
figure out whether they are the same or different types of rock. The information
is as follows: Rock A formed from small pieces of rock. Rock B formed from liquid
rock in a different place. Rocks A and B formed at about the same time. Are
Rocks A and B the same or different types of rock? The rocks are

Both are different.

Explanation:

Both rocks are different from one another because both formed from different types of rocks. Rock A was formed from small pieces of rock while on the other hand, Rock B was formed from liquid  rock so they both have different sources of rocks from which they were formed. Forming at the same time does not show that they are similar to each other, it is their source which decides that they are similar or different.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation: