Plants use carbon dioxide to breathe basically and then that converts to photosynthesis witch gives them nutrients. And then they release oxygen which humans consume to breathe in then we release carbon dioxide and the circle goes on and on
18: D, homologous
20: B, DNA
I can’t see 17 or 19!
Answer:
When living in colder climates, people tend to build their buildings, shops, etc with more insulation and heavier materials so that heat resonates as best as it can in the building.
Explanation:
Answer:
Iron man comes from Marvel Studios. He was created by Stan Lee