input: OPTIONS:
- moves
- ground
- small
- Energy.
- kinetic energy
- stationary
- energy
- It will move. Now, answer this question: Fact 1: If two balanced forces act on an object in opposite directions then that object will remain stationary. Fact 2: Centrifugal force exactly balances gravitational force. Given the two facts above, centrifugal force act along with gravitational force to cause an object to remain what?
A:
output: stationary

Fact 1: Astronauts require preserved food for extended flights. Fact 2: Most of the Shuttle foods are preserved by dehydration, which saves weight and storage space. Given the two facts above, astronauts require what food for extended flights?

OPTIONS:
- Echinoderm.
- layers of fat
- dehydrated
- fresh
- hand picked
- nutrients
- frozen
- hydration

Answer: dehydrated

Problem: OPTIONS:
- harmful
- mutations
- cells
- toxins
- three
- Mass
- oncogenes
- ovaries
Q: Fact 1: Cancer cells divide more often than normal cells, and grow out of control. Fact 2: Cancer cells, however, grow out of control and develop into a tumor. Given the two facts above, tumors are a collection of cancer what?
Answer: cells

Problem:OPTIONS:
- bryophytes
- moonlight
- cacti
- global warming
- calcite
- viruses
- ferns
- friction

Fact 1: Moss causes chemical weathering. Fact 2: Bryophytes are mosses, liverworts, and hornworts. Given the two facts above, what can cause chemical weathering?
****
A: bryophytes

Fact 1: Marine biomes are found in the salt water of the ocean. Fact 2: Biomes are global ecosystems. Given the two facts above, where are global marine ecosystems found?
OPTIONS:
- in freshwater ponds
- our landscape
- in the lakes' freshwater
- salt and water.
- sub-units of species
- colder and wetter
- in freshwater streams
- in the ocean's salt water
in the ocean's salt water

Fact 1: Sponges are a source of food for many species of fish. Fact 2: Sea sponges are animals in the Phylum Porifera. Given the two facts above, animals in the Phylum Porifera are a source of what for many species of fish?
OPTIONS:
- oxygen
- sound
- food
- waste
- life
- edible
- Energy
- amusement

Answer:
food