Q: Fact 1: Oxygen is essential for cellular respiration for all aerobic organisms. Fact 2: Air is used as a source of oxygen. Given the two facts above, what is used for cellular respiration for aerobic organisms? | OPTIONS:
- air
- O2
- O3
- RNA
- CO 2
- fat
- lung
- tube
A: air

Q: Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants. Fact 2: Plant adds nitrogen to the soil. Given the two facts above, what feeds plants? | OPTIONS:
- animals
- insects
- virus
- bacteria
- coal
- bees
- cells
- sugar
A: bacteria

Q: Fact 1: Plasma is formed by electrons separating from atoms in stars. Fact 2: Plasma Is the liquid portion of the blood. Given the two facts above, what is the liquid portion of the blood formed by? | OPTIONS:
- Evaporation of water
- basic building blocks of life
- flow of electrons
- Veins and arteries.
- electrons separatin from atoms
- Something made from fermented ricce
- circulatory systems
- heat production
A: electrons separatin from atoms

Q: Fact 1: Soil can be depleted of nutrients. Fact 2: Wampanucket soils are prime farmland soils. Given the two facts above, if not managed properly, nutrients can be depleted on? | OPTIONS:
- environment
- Dehydration
- fronts
- our planet
- coastlines
- the skin
- farmland
- Power plants
A: farmland