The layer of air that covers the surface of the Earth is known as ______________.
Your answer=C,
Correct answer= C,
- The table below shows 4 households, A, B, C and D trying to save water over a period of 4 months. The table shows how much water each household had been using each month.
Which family appears to have been the least effective in its attempts to save water over the 4 months?
| Amount of water used each month (m3)
|
| January
| February
| March
| April
| 17
| 17 | 18
| 19
| 15
| 14
| 15
| 14
| 18
| 19
| 15
| 14
| 16
| 16
| 15
| 15
|
|
Your answer=A,
Correct answer= A,
- Which 1 of the following ways best describes water conservation?
Your answer=D,
Correct answer= D,
- The diagram below shows the container with Substance X when placed in different positions.
Based on the diagram above, which of the following statement(s) is/are definitely true?
A: X is a gas.
B: X can be compressed.
C: X occupies space.
Your answer=A,
Correct answer= A,
- Some drivers along a road noticed a fire engine and gave way to it.
What senses did all these drivers use to come to this decision?
A: Sense of sight
B: Sense of touch
C: Sense of smell
D: Sense of hearing
Your answer=B,
Correct answer= B,
- Which 1 of the following diagrams correctly shows the exchange of gases between the leaf of a plant and the surrounding air on a dark night?
Your answer=C,
Correct answer= C,
- John conducted an experiment to find out if carbon dioxide is given off by the mouse during respiration.
Which 1 of the following observations would he make after 1 hour?
| Limewater in flask A
| Limewater in flask B
|
(1)
| Remained clear
| Turned chalky
|
(2)
| Turned chalky
| Remained clear
|
(3)
| Remained clear
| Remained clear
|
(4)
| Turned chalky
| Turned chalky
|
Your answer=B,
Correct answer= B,
- The graph below shows the number of fishes in ponds, A, B, C and D, over a period of 6 months.
Which pond contains water that is most likely not polluted?
Your answer=A,
Correct answer= A,
- In the morning, Julia noticed water droplets on the outside of the cars even though it did not rain the night before.
Which 1 the following statements explains what happened?
Your answer=B,
Correct answer= B,
- Countries that face water shortage can ___________________.
A: reuse water
B: recycle water
C: obtain water from seawater
D: build more reservoirs to collect rainwater
Your answer=D,
Correct answer= D,