Q: Q: A pulley is a simple machine that consists of a grooved wheel and? A:

OPTIONS:
- a battery
- a wedge
- a lever
- a rope

A: a rope

input: OPTIONS:
- habitats
- biomes
- dimensions
- populations Now, answer this question: Q: What can be described in terms of size, density, and distribution? A:
A:
output: populations

Q: Sphenodontia sphenodontia ("wedge tooth") arose in the mesozoic era and includes only one of what? A:

OPTIONS:
- outside genus
- traveling genus
- inner genus
- living genus

Answer: living genus

Problem: OPTIONS:
- inorganic matter
- solar energy
- minerals
- dead organic matter
Q: Q: Some consumers such as the mushroom get their energy from what? A:
Answer: dead organic matter

Problem:OPTIONS:
- charged
- intermediate
- static
- valence

Q: Electrons in the "outer shell" are also known as what kind of electrons? A:
****
A: valence

Problem:OPTIONS:
- carbon rain
- oxygen rain
- natural rain
- acid rain

Q: What phenomenon has severe consequences on both natural and man-made objects, including killing trees and degrading marble statues? A:
****
A:
acid rain