The aloe plant can absorb a lot of water during a rain shower. The extra water is stored in its leaves. The ability to store water in its leaves is most likely an adaptation to which type of environment? OPTIONS:
- one near the ocean
- one with dry conditions
- one with a variety of organisms
- one that receives a lot of sunlight
A: one with dry conditions

Over a long period of time, a rocky volcanic island that previously did not support any form of life got transformed into a dense forested region. Which of these species is most likely to have been the pioneer species that initiated this transformation? OPTIONS:
- ferns
- grasses
- lichens
- mushrooms
A: lichens

Which is a quick process that can form new land near an ocean? OPTIONS:
- earthquake
- landslide
- volcano erupting
- weathering from waves
A: volcano erupting

If the number of trees significantly decreases, the atmosphere's level of which gas might significantly increase? OPTIONS:
- nitrogen
- carbon dioxide
- carbon monoxide
- hydrogen
A:
carbon dioxide