If a bacterial cell has a length of 0.9 micrometers (µm), how many nanometers (nm) long is the cell?

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.

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Are the layers of rock above and below the coal older or younger?