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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?

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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