Problem: OPTIONS:
- velocity
- variation
- dispersement
- displacement
Q: Q: A system is said to be in stable equilibrium if, when displaced from equilibrium, it experiences a net force or torque in a direction opposite to the direction of the what? A:
Answer: displacement

Problem:OPTIONS:
- gases
- carbon dioxide
- oxygen
- plants

Q: Land could not be colonized by other organisms until what became established? A:
****
A: plants

Q: What type of galaxies have a rotating disk of stars and dust, a bulge in the middle, and several arms? A:
OPTIONS:
- pinwheel galaxies
- round galaxies
- spherical galaxies
- spiral galaxies
spiral galaxies

Q: Oxygen has the second highest electronegativity of any element; consequently, it prefers to share or accept electrons from other elements. only with fluorine does oxygen form compounds in this? A:
OPTIONS:
- liquid oxidation states
- chemical oxidation states
- negative Oxidation States
- positive oxidation states

Answer: positive oxidation states

Question: Q: The core of a star collapses during what event, forming a neutron star? A:
OPTIONS:
- spark
- blast
- gravitational
- supernova
Answer: supernova

input: OPTIONS:
- k
- ps
- amp
- ph Now, answer this question: Q: Acidity is measured by what physical property? A:
A:
output:
ph