Q: Answer the following question given this paragraph: Blood from the body enters the right atrium of the heart. The right atrium pumps the blood to the right ventricle, which pumps it to the lungs. This loop is represented by the blue arrows in Figure above . Q: Blood from the body enters what chamber of the heart before it is pumped to the right ventricle and then to the lungs? A: | OPTIONS:
- left ventricle
- left bivalve
- left atrium
- right atrium
A: right atrium

Q: Answer the following question given this paragraph: Ecosystems require constant inputs of energy from sunlight or chemicals. Q: What do ecosystems require constant inputs of? A: | OPTIONS:
- Water
- fuel
- heating
- energy
A: energy

Q: Answer the following question given this paragraph: An element is a pure substance that cannot be separated into any other substances. There are 92 naturally occurring elements. Q: What is a pure substance that cannot be separated into any other substances called? A: | OPTIONS:
- light
- Cells
- Spears
- element
A: element

Q: Answer the following question given this paragraph: Q: What are boggy regions with thick layers of peat called? A: | OPTIONS:
- wetlands
- tropics
- meadows
- peatlands
A: peatlands