Q&A - PSLE Science

[Robertpattinsonidle]

paranoid:

Please help with this question


A company is mindful of the impact its products have on the environment. Which of the following measures could the company take to be environmentally friendly?

A. Using materials that are biodegradable
B. Using renewable energy sources to power its plants
C. Designing products that are as energy efficient as possible
D. Designing packages that save space during transportation


1) A and B only
2) C and D only
3) A,C and D only
4) A,B,C and D
Thanks in advance. :imdrowning:

answer should be 4.

[G Tan]

Is air a better heat conductor than water??

[Haneyi]

G Tan:

Is air a better heat conductor than water??

No, air is a poor conductor of heat. ^^

[Petkwang]

Please help???

[Robertpattinsonidle]

G Tan:

Is air a better heat conductor than water??

air poor conductor of heat. water good conductor.

[Studious Alien]

Robertpattinsonidle:

G Tan:

Is air a better heat conductor than water??

air poor conductor of heat. water good conductor.

Water isn't a good conductor of heat, it's just better than air. Water is only a good conductor of electricity. Please correct me if i am wrong.

Regards,
Studious Alien

[chow]

charsen:

chow:

Help needed for Henry Park Prelim 2012 Paper 1 Q8. Do you include the \"Lime caterpillar\" in the population of the \"Lime butterfly\"? The suggested answer includes.


Thanks in advance!

Yes.In a population,the young and the adult are included.

Thanks charsen!

[Petkwang]

http://i47.tinypic.com/scyjgz.jpg\">


Please help!!

[TheCoolGuy]

Just asking, can anyone give me tips on how to answer questions in Science Booklet B? This would help me for PSLE.


Regards,
TheCoolGuy

[Haneyi]

TheCoolGuy:

Just asking, can anyone give me tips on how to answer questions in Science Booklet B? This would help me for PSLE.


Regards,
TheCoolGuy

Hello, you can take a look at this blog. I found it very helpful. ^^
http://sciencepsle.wordpress.com/