Science Grade 9 UC Topic 3 Flashcards
1
Q
Leachate
A
liquid that dissolves and carries substances as it passes through the soil.
2
Q
Biodegradation
A
breakdown of materials by organisms.
3
Q
Dilution
A
mixing of a substance with air or water which reduces its concentration.
4
Q
Dispersion
A
scattering of a substance away from its source.
5
Q
Aerobic
A
with O2.
6
Q
Anaerobic
A
without 02.
7
Q
Phytoremediation
A
a technique used to reduce the concentration of harmful chemicals in the soil using plants like sunflowers at a Russian power plant. (Plants also cleans the soil).
8
Q
Photolysis
A
breakdown of compounds by sunlight.
9
Q
Biomagnififctaion
A
the increase in the concentration of a chemical as it moves up the food chain.
