What are three qualities a mineral must have to be considered a gem?

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.

Atype of organism that no longer exist on earth is said to be

Which of the following best explains the changes in biodiversity shown in the graph?