Q: Fact 1: Brain cells die quickly if their oxygen supply is cut off. Fact 2: Blood carries oxygen to the brain. Given the two facts above, brain cells die quickly if what supply gets cut off?

OPTIONS:
- alveoli
- blood
- CO 2
- hydrogen
- Air
- Energy.
- electric pulses
- carbon dioxide

A: blood

input: OPTIONS:
- staying warm
- petals
- nutrients
- Chemical energy
- Exfoliation
- carbon monoxide
- water conservation
- water evaporation Now, answer this question: Fact 1: Waxy leaves are used for storing water by some plants. Fact 2: Plants have many adaptations for conserving water or storing it. Given the two facts above, what do some plants use waxy leaves for?
A:
output: water conservation

Fact 1: Roots have primary and secondary meristems for growth in length and width. Fact 2: Secondary meristems develop after primary meristems. Given the two facts above, what do roots have?

OPTIONS:
- allow growth
- resistance
- Sediment
- meristems
- layers of fat
- Energy
- storing water
- alveoli

Answer: meristems

Problem: OPTIONS:
- a prism
- energy
- tube
- two
- chemicals
- magnet
- squeeze
- coiled
Q: Fact 1: Amagnet moving in a coil of copper wire can cause an electric current. Fact 2: Electricity is passed through the copper to magnetize the core. Given the two facts above, what is used with copper to produce current?
Answer: magnet

Problem:OPTIONS:
- It becomes dormant
- decreases its bodily water
- decreases the freezing point
- Plant growth is reduced
- It remains dormant
- prevent heat loss
- body temperature reduces
- cause change to the enviroment

Fact 1: Seasons cause change to the environment. Fact 2: Winter is the coldest season. Given the two facts above, what does winter do?
****
A: cause change to the enviroment

Problem:OPTIONS:
- Dehydration
- Cooking
- a hydraulic system
- sweating
- refrigerators
- fur and fat
- an electric stove
- hard outer covering

Fact 1: Arefrigerator is used for keeping food fresh for a long period of time. Fact 2: To prevent bacterial food poisoning, the basic rule is to keep hot foods hot and cold foods cold. Given the two facts above, what prevents cold food from growing poisonous bacteria?
****
A:
refrigerators