I think it's A.) RNA is typically a double-stranded molecule, whereas DNA is always single stranded.
Answer:
A
Explanation:
Obviously the most logical answer, ^_^
New islands, new volcanic rock and on land formed from glacial retreats.
Answer:
Infiltrate rate decreases and also water quality.
Explanation:
There is adverse effect of erecting buildings and concrete pavement on the recharge of aquifers and the quality of the water because the water is unable to infiltrate inside the soil due to concrete floor and the recharging of aquifers is not possible. These buildings and concrete pavements also reduces the quality of water due to degradation of sediments present in the building with the passage of time.