Most organisms in the biosphere exchange the gases oxygen and carbon dioxide with the atmosphere. Which of the following describe an exchange of matter between the atmosphere and the geosphere?
A. a volcanic eruption releasing carbon dioxide into the atmosphere
B. carbon dioxide dissolving from the atmosphere into ocean water
C. the remains of living things settling on the floor of the ocean, and then becoming rock
D. water vapor condensing in the air to form clouds

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.