Jason was part of team that had to calculate the incoming solar radiation and outgoing terrestrial infrared radiation. what did jason’s team study?

Heat budget of the earth.

Explanation:

The heat budget is defined as the balancing of heat energy between the incoming solar radiation that is captured by the earth and the released heat from the earth into the outer atmosphere in the form of radiations. This heat budget helps in maintaining an average temperature on earth. When this heat budget is not in equilibrium, then it adversely affects the climate on earth, leading to an extensive increase or decrease in the earth's global temperature.

Thus, when Jason and his team calculated the incoming solar and outgoing terrestrial infrared radiation, they actually studied the earth's total heat budget.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

i'd say that the moon rock is about 2.2 billion years old.