Rheumatoid arthritis is caused by: a. a bacteria b. a virus c. a reaction to an immunization d. an autoimmune reaction

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

Explain how scientists use geologic time to determine the age of landforms.

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