Where is the earth’s magnetic field the strongest? a at the equator b in outer space c in the outer core d at the poles

Which type of bond forms between water moleculesstrong bondhydrogen bondcovalent bondpolar bond

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.