Problem:OPTIONS:
- fossil fuels
- light pollution
- Pollution
- drought
- rainbow falls
- Greenhouse gasses
- lunar eclipse
- air pollution

Fact 1: Air pollution can cause the pH of soil to decrease. Fact 2: Highly acid soil is detrimental to crop growth and biological activity in soil. Given the two facts above, crop growth can be negatively impacted by?
****
A: air pollution

Fact 1: Riding a bike does not cause pollution. Fact 2: Pollution One of the ways habitat is degraded is by pollution. Given the two facts above, what is one thing that is not bad for a habitat?
OPTIONS:
- salt and water.
- riding a motorcycle
- genetic diversity
- riding a car
- Quality of life
- food and shelter
- riding an airplane
- riding a bike
riding a bike

Fact 1: Balance is the ability to sense and maintain body position. Fact 2: Another part of the inner ear is used for balance. Given the two facts above, this helps with sensing and maintaining body position:?
OPTIONS:
- lightheaded
- sweating
- inner ear
- cochlea
- four limbs
- nerves
- Riding a bike
- dizzy

Answer: inner ear

Question: Fact 1: Microscope is used to see small things by biologists by making them appear bigger. Fact 2: Mites are almost microscopic and best seen with a hand lens or magnifying glass. Given the two facts above, what or or magnifying glasses are used to see small things to make them appear bigger?
OPTIONS:
- mirrors
- satellites
- hand lenses
- electricity
- an image
- sea urchins
- barrel-shaped
- squids
Answer: hand lenses

input with options: Fact 1: Invertebrates are animals that lack a vertebral column, or backbone. Fact 2: Snails and slugs are invertebrates. Given the two facts above, what do snails and slugs lack?
OPTIONS:
- eyes
- a nervous system
- kinetic energy
- Chlorophyll
- Energy.
- life
- a backbone
- Energy
output: a backbone

Problem: OPTIONS:
- Chemical dating
- Mechanical dating
- Non radioactive dating
- blastoids
- single-celled organisms
- Seismometer
- Radioactive dating
- an electron microscope
Q: Fact 1: Radioactive dating is used to determine the age of fossils. Fact 2: Geologists use fossils to determine the age of the rock layer that it was found in. Given the two facts above, what do geologists use to determine the age of rock layers?
Answer:
Radioactive dating