Q: The periodic table is an arrangement of the elements in order of increasing what? A:

OPTIONS:
- gravity numbers
- metallic numbers
- negative numbers
- atomic numbers

Answer: atomic numbers

Problem: OPTIONS:
- trophic level 5
- trophic level 4
- trophic level 2
- trophic level 3
Q: Q: What trophic level are secondary consumers (which eat primary consumers) considered to be? A:
Answer: trophic level 3

Problem:OPTIONS:
- hydrogen reactions
- chemical reactions
- material reactions
- combustion reactions

Q: What involves the reaction of a hydrocarbon with oxygen gas to produce water and carbon dioxide? A:
****
A: combustion reactions

Q: About how full is the outer energy level in metalloids? A:
OPTIONS:
- nearly empty
- three-fourth full
- a quarter full
- half full
half full

Q: What is used for the fermentation process that makes beer, wine, and bread? A:
OPTIONS:
- fungi
- barley
- whey
- yeast

Answer: yeast

input with options: Q: Opposite charges attract and like charges do what? A:
OPTIONS:
- nothing
- rebound
- impede
- repulse
output:
repulse