Why are antibiotics unhelpful for treating the common cold? A. Bacteria are not killed by antibiotics.
B. Antibiotics cannot treat illnesses.
C. Colds are caused by viruses.
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D. Colds are caused by antibiotins.

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3