Problem:OPTIONS:
- earth
- heat
- water
- sun

Q: Where do most ecosystems get their energy from? A:
****
A: sun

Q: Birds have evolved a respiratory system that enables them to fly. flying is a high-energy process and requires a lot of this? A:
OPTIONS:
- weight
- nitrogen
- adaptation
- oxygen
oxygen

Q: Kangaroos, koala and opossums are part of what group? A:
OPTIONS:
- primates
- cephalopods
- monotremes
- marsupials

Answer: marsupials

Question: Q: What forms the pathway of water and nutrients from roots to leaves and flower? A:
OPTIONS:
- the stamen
- the stigma
- the pistil
- the stem
Answer: the stem

input with options: Q: What gas produced by fossil fuel use is a major cause of global warming? A:
OPTIONS:
- helium
- hydrogen
- phosphorous
- carbon dioxide
output: carbon dioxide

Problem: OPTIONS:
- swirl
- solid
- vapor cloud
- liquid
Q: Q: The entropy is decreasing because a gas is becoming a what? A:
Answer:
liquid