Free Exam: Session2_25HKISOHR_IntegScience_Primary4
Number of Questions in Test: 25
Number of Questions in Preview: 5
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[size=4]Which of these energy sources will never run out because the Earth keeps making it?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
[size=4]A nonrenewable energy source is one that:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
[size=4]Which gas traps heat in the Earth's atmosphere and is a main cause of the "greenhouse effect"?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 4
[size=4]The purpose of the greenhouse effect is to:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 5
[size=4]Computer chips and processors, the "brains" of the computer, are mostly made from a material called:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |