Measuring Environmental Change

Question	Answer
What can be used to measure environmental change?	Living indicators
What is an indicator species?	Organisms that are sensitive in their environment and so can be studies to see the effect of human activities
How can we measure air pollution using an indicator species?	It can be monitored by looking at lichen that are sensitive to concentrations of Sulfur Dioxide. If there are many lichen, the air will be clean
Why might a mayfly larvae be good for measuring for water pollution?	Because they are sensitive to the concentration of dissolved oxygen in the water. If there's a mayfly in water the water is clean
Can environmental changes be measured by non-living indicators?	Yes
Give four ways scientists are measuring changes in environments using non-living methods.	1) Satellites 2) Automatic weather stations 3) Rain gauges 4) dissolved oxygen meters
How do Satellites measure environmental change?	They measure the temperature of the sea surface and the amount of snow and ice cover there is
How do automatic weather stations measure environment change?	They tell use the atmospheric temperature at various locations
How do rain gauges measure environmental change?	They measure how much it rains a year
How do dissolved oxygen meters measure environmental change?	They measure the concentration of dissolved oxygen in water

Resource summary

	Created by Adam Collinge over 10 years ago