Concepts: atmosphere, planet, surface
A: continued sunlight passes through the atmosphere to heat the surface of the planet .
Concepts: abandon, building, train
A: An abandoned train with a tree growing on it by a building.
Concepts: cave, flashlight, search
A: Two men with flashlights crawling through a cave searching for something.
Concepts: computer, technician, work
A:
technicians working on a computer