Answer the following question given this paragraph: During a massive eruption, all of the material may be ejected from a magma changer. Without support, the mountain above the empty chamber may collapse. This produces a huge caldera . Calderas are generally round, bowl-shaped formations ( Figure below ). Q: Huge calderas form when the mountain above an empty chamber of what collapses? A:
OPTIONS:
- gas
- mercury
- coal
- magma
magma

Answer the following question given this paragraph: All chemical reactions, even exothermic reactions, need activation energy to get started. Activation energy is needed to bring reactants together so they can react. Q: What do all chemical reactions need to get started? A:
OPTIONS:
- expression energy
- kinetic energy
- potential energy
- activation energy

Answer: activation energy

Question: Answer the following question given this paragraph: Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed. Q: What are plant-like protists called? A:
OPTIONS:
- fungi
- sponge
- spores
- algae
Answer: algae

input with options: Answer the following question given this paragraph: Q: The number of possible isomers increases tremendously as carbon skeletons increase in what? A:
OPTIONS:
- variation
- mass
- weight
- size
output: size

Q: Answer the following question given this paragraph: The respiratory system is responsible for breathing. Q: What system of the body is generally responsible for breathing? A:

OPTIONS:
- excretory
- integumentary
- cardiac
- respiratory system

A: respiratory system

Answer the following question given this paragraph: Density is mass per unit volume. Density is a measure of how closely molecules are packed together. The closer together they are, the greater the density. Since air is a gas, the molecules can pack tightly or spread out. Q: What is the measure of how closely molecules are packed together? A:
OPTIONS:
- length
- volume
- frequency
- density
density