Answer:
A barometer
Explanation:
It is commonly used to measure atmospheric pressure
False. I don’t know how to explain it
A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some organisms are very sensitive to pollution in their environment, so if pollutants are present, the organism may change its morphologyphysiology or behaviour, or it could even die. Hope that helped!
The effect of the climate change has a greater one with the crab population.