Problem: OPTIONS:
- mitosis
- contraction
- compression
- segmentation
Q: Q: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax? A:
Answer: segmentation

Problem:OPTIONS:
- GPS
- radar
- scanning
- sonar

Q: What tool, used to locate underwater objects, utilizes ultrasound in a way that is similar to echolocation? A:
****
A: sonar

Q: What does the moon not have to protect it from extreme temperatures? A:
OPTIONS:
- oceans
- metals
- oxygen
- atmosphere
atmosphere

Q: The hypothalamus and pituitary gland are located near the base of this organ? A:
OPTIONS:
- the heart
- the lungs
- the liver
- the brain

Answer: the brain

Question: Q: What is the outer layer of the sun made up of? A:
OPTIONS:
- oxygen
- nitrogen
- gas
- plasma
Answer: plasma

input: OPTIONS:
- thermal energy
- robust energy
- renewable energy
- geothermal energy Now, answer this question: Q: What kind of energy used heat from magma within the earth to heat homes or produce steam that turns turbines? A:
A:
output:
geothermal energy