Q: A student leaves a bucket of water outside on a warm, sunny day. Which process most likely happens to the water in the bucket?

OPTIONS:
- melting
- freezing
- evaporation
- condensation
A: evaporation
Q: Which of the following best describes the purpose of the chromosomes in the nucleus of a cell?

OPTIONS:
- to store the genetic instructions needed to specify traits
- to release energy by breaking down food molecules
- to transport nutrients into and out of the cell
- to protect the cells from microorganisms
A: to store the genetic instructions needed to specify traits
Q: One effect of ocean pollution is that it can reduce populations of phytoplankton and algae. The reduction of these populations might have which impact on an ecosystem?

OPTIONS:
- decreasing the level of carbon dioxide in the atmosphere
- decreasing the amount of oxygen being produced
- increasing the amount of marine sediments
- increasing salt-water fish populations
A: decreasing the amount of oxygen being produced
Q: Which type of landscape most likely existed millions of years ago in places where natural gas reserves are currently found?

OPTIONS:
- desert
- Alpine forest
- Arctic ocean
- swamp
A:
Arctic ocean