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P5 Germination & Energy Conservation
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TOPIC: P5 Germination & Energy Conservation
#1717
P5 Germination & Energy Conservation 1 Year, 10 Months ago Karma: 1
Please help.



Q21.
Which of the following does not contribute to conserving our Earth's supply of natural resources?

(1) Use energy-saving bulbs.

(2) All vehicles to use natural gas instead of petrol.

(3) Only turn on the water heater before showing.

(4) Ensure that the refrigerator is overloaded with food.


Please advise how option (2) contributes to conserving our Earth's supply of natural resources? Isn't natural gas one of the natural resources?





Q14.
Which statement(s) about germination of a seed is/are correct?

A. During germination, the seed needs air, sunlight, water, food and warmth.

B. A seed does not need to make food.

C. Water is needed for germination to occur.

D. Fertiliser must be added to the seed for germination to take place.

(1) C only

(2) A and C only

(3) B and C only

(4) A, C and D only

My answer is (3) but worksheet answer is (1). Please advise which is correct.


TIA
P56
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Last Edit: 2010/05/07 21:57 By Chris.
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#1719
Re:P5 Science 1 Year, 10 Months ago Karma: 0
Q21

because it compares natural gas to petrol. natural gas is a natural resource but its better to use it than petrol

Q14
A is incorrect because it does not need sunlight
B A seed needs food since it does not have leaves it cannot make its own food. so B is correct
C is correct
D A seed can grow without fertilizers

So 3 is correct

to remember what seeds need to germinate remember WOW (Water, Oxygen, Warmth)
Last Edit: 2010/03/16 21:49 By chloe.
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#2412
Re:P5 Science 1 Year, 9 Months ago Karma: 0
WOW meant water,oxygen,warmth also meant World Of Warcraft ha ha ha
Last Edit: 2010/04/27 20:32 By ZYCHAI.
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