Answer:
Heat transfer, CO2, O2, water transfer.
Explanation:
Less children are being born due to increased efforts to lower the CBR (crude birth rate) and improve contraceptive methods. This results in less children being born, meaning that the older people are increasing in dependency (because there's more older people in the older generations vs the newer)
Answer:
fossil record of dinosaurs
Explanation:
geologists used fossils, meteor rocks, and rocks to figure out that earth was 4.6 billion years old
Because the light waves are stretched out, they look red. When this red light strikes the moon's surface, it also appears red.
