Q: What is the cloud of brown dust-like power that escapes when a puffball fungus is touched? A:

OPTIONS:
- ions
- seeds
- pollon
- spores

Answer: spores

Problem: OPTIONS:
- - crystalline layer
- mantle
- impermeable layer
Q: Q: Oil is found in the porous rock layer and trapped by the what? A:
Answer: impermeable layer

Problem:OPTIONS:
- dermis
- notochord
- thorax
- vertebral column

Q: What makes up the core of the endoskeleton? A:
****
A: vertebral column

Q: Which nerve carries electrical signals from the rods and cones to the brain? A:
OPTIONS:
- auditory
- neurotransmitter
- axon
- optic
optic

Q: If an electric current passes through water, water molecules break down into molecules of what? A:
OPTIONS:
- carbon and oxygen
- hydrogen and carbon
- oxygen and methane
- hydrogen and oxygen

Answer: hydrogen and oxygen

input with options: Q: The formula mass of a covalent compound is also called the what? A:
OPTIONS:
- atomic mass
- ionic mass
- nucleus mass
- molecular mass
output:
molecular mass