Q: Q: What is the supply of water to land or crops to help growth called? A:

OPTIONS:
- drainage
- absorbtion
- precipitation
- irrigation

A: irrigation

input: OPTIONS:
- larynx
- intestine
- gland
- sphincter Now, answer this question: Q: What type of structure between the esophagus and the stomach normally opens only when a bolus arrives? A:
A:
output: sphincter

Q: Warm water from the equator mixes with cold water from where? A:

OPTIONS:
- the tropics
- the oceans
- the continents
- the poles

Answer: the poles

Problem: OPTIONS:
- accumulation
- frequency
- synchrony
- interference
Q: Q: What is it called when two waves in the same medium pass one another? A:
Answer: interference

Problem:OPTIONS:
- pair bond
- neutron
- nucleus
- atom

Q: A polyatomic ion is an ion composed of more than one what? A:
****
A: atom

Problem:OPTIONS:
- Pluto
- Mercury
- Jupiter
- mars

Q: Which other planet in the solar system is the easiest to observe from earth? A:
****
A:
mars