Can someone please help me and if you don’t know the answer don’t bother answering

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

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

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome