Fact 1: Being exposed to wind can cause erosion of soil. Fact 2: Wind erosion is slowed by wind barriers such as trees and shrubs. Given the two facts above, what blocks erosion?

OPTIONS:
- roots
- Raft
- bamboo
- trees
- bushes
- Roads
- rivers
- streams

Answer: trees

Problem: OPTIONS:
- waves
- Injury
- motion
- voltage
- heat
- death
- murmur
- sound
Q: Fact 1: Matter vibrating can cause sound. Fact 2: All matter is made of molecules. Given the two facts above, molecules vibrating can cause ?
Answer: sound

Problem:OPTIONS:
- carbon dioxide
- sunlight
- calcite
- Calcium carbonate
- water
- ice
- peachleaf willow
- fossil fuels

Fact 1: Coal is used for generating heat by burning. Fact 2: Fossil fuels are coal, oil and natural gases. Given the two facts above, what is used for generating heat by burning?
****
A: fossil fuels

Fact 1: The Earth being tilted on its rotating axis causes seasons. Fact 2: Weather and Seasons Weather and seasonal changes affect all plants and animals. Given the two facts above, earth tilted on its rotating axis causes what which affects all plants and animals?
OPTIONS:
- global warming
- temperature
- unaltered weather
- making change
- changing tides
- population movement
- weather changes
- chemical reaction
weather changes

Fact 1: Echinoderms lack a centralized nervous system. Fact 2: All echinoderms are deuterostomes . Given the two facts above, some deuterostomes lack a centralized what?
OPTIONS:
- DNA
- eardrum
- critical organs
- permineralization
- A ruler
- nervous system
- communication center
- respiratory system

Answer: nervous system

input with options: Fact 1: Disease has a negative impact on an organism. Fact 2: Plants and animals are organisms. Given the two facts above, disease has a negative impact on?
OPTIONS:
- electronics
- fabrics
- plants and animals
- genetic diversity
- dirt
- our planet
- Abnormal cell growth
- genetic material
output:
plants and animals