input: OPTIONS:
- storm front
- obscured front
- stationary front
- occluded front Now, answer this question: Q: When a warm air mass becomes trapped between two cold air masses, what type of front occurs? A:
A:
output: occluded front

Q: Living things need to take in nutrients so that they can grow and create what? A:

OPTIONS:
- protein
- plasma
- hydrogen
- energy

Answer: energy

Problem: OPTIONS:
- light number
- spectrum
- ability
- atomic number
Q: Q: An atom can be classified as a particular element based solely on its what? A:
Answer: atomic number

Problem:OPTIONS:
- air density
- moon phase
- time of day
- air temperature

Q: What determines which type of precipitation falls in the atmosphere? A:
****
A: air temperature

Q: Unlike corals, jellyfish spend most of their lives as what? A:
OPTIONS:
- infants
- pupae
- cercariae
- medusae
medusae

Q: How many protons do all atoms of a particular element have in their nuclei? A:
OPTIONS:
- varying number
- three
- zero
- same number

Answer:
same number