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Environmental Science

Environmental Science
In the northern hemisphere, north-facing hillsides have a ____ growing season than south-facing hillsides.

Longer
Shorter

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Environmental Science
As it travels along the food chain, the concentration of DDT

decreases
fluctuates randomly
increases
remains constant

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Environmental Science
Freshwater protozoans react to a/an __________ environment by removing water through _______

isotonic, a contractile vacuole
hypertonic, a contractile vacuole
hypotonic, a contractile vacuole
hypotonic, turgor pressure

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Environmental Science
The range of normal human hearing is in the range of

50Hz to 15000 Hz
15000 Hz and above
50 Hz to 80 Hz
10 Hz to 80 Hz

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Environmental Science
All food chains starts with __________ and ends with decay.

Photosynthesis
Fungi
Organisms
Environment

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Environmental Science
The World Wetlands Day is celebrated on ________

43987
43911
43889
43863

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