What is an enduring issue for pollution

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky

Which of the following is true of all geographic locations on earth?

Which events occurred during the space race? check all that apply. (a) nasa was established. (b) yuri gagarin orbited earth. (c) the soviet union launched salyut. (d) the united states launched skylab. (e) the united states launched explorer 1.