Q: What sound can be heard when sound waves bounce back from a hard object? A:
OPTIONS:
- loop
- eerie
- boom
- echo

Answer: echo

Question: Q: Because the nuclei of each h atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). but because the two atoms involved in the covalent bond are both h atoms, each nucleus attracts the electrons by the same amount. thus the electron pair is equally shared by these? A:
OPTIONS:
- four atoms
- one atom
- nine atoms
- two atoms
Answer: two atoms

input with options: Q: In animals, what process occurs only in germ cells, which are in the ovaries or testes? A:
OPTIONS:
- mitosis
- electrolysis
- reproduction
- meiosis
output: meiosis

Q: Q: Nails cover the tips of what? A:

OPTIONS:
- lips and teeth
- fingers and lips
- ribs and nerves
- fingers and toes

A: fingers and toes

input: OPTIONS:
- a mirror image
- a entire image
- a virtual example
- a virtual image Now, answer this question: Q: Plane mirrors work because the light rays create what behind the mirror? A:
A:
output: a virtual image

Question: Q: What does the human protein cytokine help fight? A:
OPTIONS:
- mutations
- parasites
- toxins
- infections
Answer:
infections