Consider the element carbon. how many electrons can be found in a carbon atom? how many are valence electrons? a) 6; 2 b) 6; 4 c) 12; 4 d) 12; 6

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

Carmen is load furniture and boxes onto a moving truck. she picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. which term best describes the type of force carmen uses? a. contact b. friction c. gravity d. noncontact