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World Environment Day

The Earth is estimated to be 4.6 billion years old. Modern humans have been on Earth for how long?
10 million years
1 million years
100,000 years
10,000 years
The global human population is projected to reach 9 billion by what time?
2100
2050
2040
We won't reach 9 billion because the Earth cannon support that many people
How much oxygen does the average adult need every day?
1000 litres
550 litres
250 litres
100 litres
How many trees does it take to produce the oxygen required for one adult every day?
1-2
4-5
7-8
10-15
What accounts for the greatest use of household water?
Washing machine
Dishwasher
Shower
Landscaping
How can you improve fuel efficiency when driving?
Correct tyre inflation
Using cruise control
Following the speed limit
All of the above
Which electronic devices consume the most power when in standby mode?
TV
Multifunction printer
Laptop computer
DVR with a digital payTV box
Caulking windows and doors is the best way to reduce energy use in the home
True
False
How much has Opus contributed to global environmental outcomes by reducing our carbon emissions?
2 percent
5 percent
10 percent
12 percent
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