Fact 1: Harming an animal species has a negative impact on the population size of that species. Fact 2: Rarity in plants and animals frequently manifests itself in small or reduced population size. Given the two facts above, if a species is rare, harm to it's population increases or decreases?

OPTIONS:
- drought
- Pesticides
- constant
- increases
- stays the same
- influenza
- deforestation
- decreases

Answer: increases

Problem: OPTIONS:
- crust
- metal
- mass
- O3
- heat
- cycles
- energy
- liquid
Q: Fact 1: Phase changes do not change mass. Fact 2: Melting, freezing, condensation, and evaporation are examples of phase changes. Given the two facts above, melting matter does not change its ?
Answer: mass

Problem:OPTIONS:
- oxygen
- porous
- blue
- H 2 O
- a path
- SO2
- liquid
- nektar

Fact 1: Veins generally carry deoxygenated blood. Fact 2: Oxygenated blood is red, deoxygenated blood is blue. Given the two facts above, veins generally carry what type of blood?
****
A: blue

Fact 1: Wind is used for producing electricity. Fact 2: Electrical energy is also energy. Given the two facts above, what is wind used for?
OPTIONS:
- producing energy
- Movement of an air mass
- animal transport
- cutting hair
- spread flower seeds
- Metling snow
- smoking cigarettes
- freezing ice
producing energy

Fact 1: High pressure systems cause clear weather. Fact 2: High pressure systems tend to bring calm weather. Given the two facts above, what do high pressure systems make?
OPTIONS:
- heat energy
- energy
- electricity
- calm days
- fossil fuels
- Solutions
- Pollution
- Metling snow

Answer: calm days

input with options: Fact 1: Shivering occurs when many muscles contract a little bit all at once. Fact 2: Involuntary contractions, shivering, cause the production of heat. Given the two facts above, what occurs when many muscles contract a little bit all at once?
OPTIONS:
- the production of cells
- preventing heat transfer
- To keep their body heat.
- the production of heat
- Generating heat
- recovery time from fatigue
- the production of cold
- the production of skin
output:
the production of heat