Q: What is the shape of the orbits that planets make around the sun? Choices: - conical - variable - elongated - elliptical A:
elliptical

Q: What substance, involved in most biochemical reactions, is essential to life? Choices: - carbon - nitrogen - air - water A:
water

Q: What important process takes place in specialized tissue inside plant leaves? Choices: - pollination - mitosis - reproduction - photosynthesis A:
photosynthesis

Q: Each cell and every living thing requires what? Choices: - potassium - calcium - salt - energy A:
energy