Answer:
Erosion
Explanation:
Weathering is the travel from wind that leads to things being in new places like seeds.
Infiltration is adding things in to something, such as adding salt to water.
Answer:
DNA polymerase proofreading
Explanation:
Proofreading by DNA polymerase corrects errors during replication. Some errors are not corrected during replication, but are instead corrected after replication is completed; this type of repair is known as mismatch repair.
Answer:
The depth at which Drew found the algae
Explanation:
The dependent variable was the depth at which he found the algae, because that is what he measured on each day.
The independent variable was the sky conditions, since that changed from clear to cloudy, which impacted the dependent variable/the depth of the algae.