Q: Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Organic matter adds nutrients to the soil. Given the two facts above, what does decomposition increase the amount of in soil?

OPTIONS:
- green manures
- grass seed
- it needs them
- bamboo
- Energy.
- insects
- molecules
- nutrients

A: nutrients

input: OPTIONS:
- soundwaves
- rubber balls
- submarines
- whale bones
- electricity
- rays or beams
- light
- satellites Now, answer this question: Fact 1: Sonar is used to find the location of an object. Fact 2: Sonar bounces sound waves off the bottom of the ocean. Given the two facts above, what can be bounced off the ocean floor to located objects?
A:
output: soundwaves

Fact 1: The emission of sulfur dioxide causes acid rain. Fact 2: Sulfur Dioxide and Asthmatics A highly reactive colorless gas smelling like rotten eggs, sulfur dioxide derives primarily from fossil fuel combustion. Given the two facts above, the emission of what causes acid rain?

OPTIONS:
- Material carrying electricity
- decomposing dead organisms
- DNA damage and mutations
- soil loss through hurricanes
- Something that smells like rotten eggs
- extreme heat and pressure
- chemical compound NaCl
- generating heat by burning

Answer: Something that smells like rotten eggs

Problem: OPTIONS:
- harmful substances
- Organic compounds
- bacon
- cayenne
- acetic acid
- dogs
- Chlorophyll
- Calcium carbonate
Q: Fact 1: Most mollusks have shells. Fact 2: Coral reefs and shells are made of calcium carbonate. Given the two facts above, what do mollusks contain?
Answer: Calcium carbonate

Problem:OPTIONS:
- producers
- carbon atoms
- Most plants
- production lines
- light energy
- trees
- air pockets
- Chlorophyll

Fact 1: Producers make food from inorganic molecules. Fact 2: Among the small inorganic molecules which are economically attractive are CO and H 2 . Given the two facts above, what makes food from CO and H 2? ?
****
A: producers

Problem:OPTIONS:
- loss
- dryness
- expand
- growth
- fertilization
- death
- harm
- widen

Fact 1: Rain causes erosion. Fact 2: Landslides are frequent, and erosion is severe. Given the two facts above, what do landslides do to land?
****
A:
loss