Answer:
True
Explanation:
I'd say its true due to the fact Lichens are very sensitive to pollutants in general.
Answer:
Earthquakes
Explanation:
This would happen because we have devices such as seismographs to record the motion of the ground during an earthquake. Without that, we wouldn't know how big the earthquake is and how to prepare for survival.
The natural water sample contains only one type of bacteria.
Cutting down trees in the forest to make furniture because trees produce oxygen
