HELP What is the consequence of atoms being a singular closed system?

Atoms of a certain element contain a fixed amount of energy.

Atoms of a certain element can’t be altered by outside forces.

Atoms don’t interact with each other in any way.

Atoms decompose slowly over time as they lose energy.

How does convection affect our atmosphere? our layers of earth? our oceans?

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.