What is BOD used for?

To measure the amount of biodegradable organic matter

Why do people care about saving species?

Ecological Value and Practical Value

A resource is not consumed faster than it can be regenerated

Variety of organisms within an ecosystem

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Environmental Pollution

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Answers

1
What is BOD used for?
To measure the amount of pH level in a water sample
To measure the amount of inorganic matter
To measure the amount of biodegradable organic matter
To measure the amount of acidity in a water sample
2
Why do people care about saving species?
Environmental Value and Amazement Value
Art value and Beauty value
Ecological Value and Practical Value
Aesthetic Value and Religious Value
3
Sustainable use
Part of the food web
Ensures protection of a diversity of organisms
A resource is not consumed faster than it can be regenerated
Human made gases that contributed to the 'ozone hole'
4
Human impact (upper atmosphere) on a global scale which affects many ecosystems
Ozone hole
Greenhouse Effect
Carbon Dioxide
Habitat
5
Biodiversity is:
Variety of organisms within a food web
Variety of ecosystems within an organism
Variety of organisms within a population
Variety of organisms within an ecosystem
6
What are the common forms of WATER pollution
suspended sediments from soil erosion
toxins from chemicals
bacteria, protozoans and other microorganisms
Chemical waste
7
The Ozone layer spreads out in the ________ around the Earth
Troposhere
Ionosphere
Mesosphere
Stratosphere
8
The act of spoiling and poisoning any part of the environment
Ozone layer
Pollution
Chlorofluorocarbons
Biological Oxygen Demand
9
What is sewage an example of?
Inorganic waste
Organic waste
Microhabitat
Dryland
10
What does CFC stand for?
Chlorofluorocarbons
Clorofluorocarbons
Coloursfluorocarbons
Chlrorinefluorocarbons
11
What are wastes that can be broken down by decomposers?
Biodegradable
Non-Biodegradable
12
Which is NOT considered as AIR pollution?
Nuclear waste
Chemical waste
Oil
Car exhaust fume
13
Which is NOT an example of human impact which increases its effect on the atmosphere?
Development of motor vehicles
Smoke and Smog
Carbon Monoxide gas from vehicles
Hurricanes and Thunderstorms
14
Layer of warm air overlaying a layer of cool air
Thermal inversion
Thermal excursion
Thermal layer
Thermal blanket
15
What does BOD stand for?
Biological Oxygen Demand
Biological Oxygen Dioxide
Biological Ozone Demand
Biological Oxygen Deband

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