Explain why polaris is considered to be a very significant star even though it is not the brightest in earth sky

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

What causes the formation of ocean currents?