Most rocks are made minerals

: five
: one or more
: only one
: two or more

Scientists can distinguish more than 4,000 different minerals but many are very rare. About 200 minerals make up the bulk of most rocks. The feldspar mineral family is the most abundant. Quartz, calcite, and clay minerals are also common.

Explanation:

Here's what i found hope it helps

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.