Unit 3 (pollution) Flashcards
1
Q
What is a pollutant?
A
The substance that causes harm
1
Q
What is an indicator species?
A
The organisms which indicate levels of pollution/environmental quality
2
Q
What is pollution?
A
The addition of substances to an environment that would cause harm to organisms
3
Q
How to indicator species indicate pollution levels
A
By their presence, absence or abundance in an environment
4
Q
Give 2 examples or invertebrates that are only found in unpolluted water
A
Potential answers: stonefly, stonefly zerlandoperla, stonefly stenoperla, caddisfly olinga, caddisfly helicopsyche, mayfly tepakia, mayfly nesameletus.
5
Q
What levels of oxygen does UNPOLLUTED water contain (high or low)
A
High
6
Q
What levels of oxygen does POLLUTED water contain (high or low)
A
Low
