Recent questions

0 like 0 dislike

1 answer 195 views

Why water molecule is polar?

asked Sep 24, 2017 in Chemistry by sonia (36.5k points)

0 like 0 dislike

1 answer 160 views

Point out two properties of water that make it an excellent solvent.

asked Sep 24, 2017 in Chemistry by sonia (36.5k points)

0 like 0 dislike

1 answer 90 views

What is capillary action?

asked Sep 24, 2017 in Chemistry by sonia (36.5k points)

0 like 0 dislike

1 answer 121 views

Oxides of nitrogen cause air pollution. Describe the sources of these compounds.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 234 views

Compounds of sulphur are air pollutants.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 155 views

Define acid rain. How it forms and what are its effects?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 86 views

Why CO is considered a health hazard?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 284 views

CO2 is necessary for plants but why its increasing concentration is alarming for us?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 298 views

What is the characteristics of stratosphere?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 174 views

Give the characteristics of troposphere.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 264 views

Write down the significance of atmospheric gases.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 110 views

How ozone layer is being depleted by Chlorofluocarbons?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 1.1k views

Why the 75% of the atmospheric mass lies within the troposphere?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 115 views

How ozone layer forms in stratosphere?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 161 views

Point out two serious effects of ozone depletion.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 404 views

How acid rain increases the acidity of soil?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 2.7k views

Which air pollutant is produced on anaerobic decomposition of organic matter?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 126 views

What threats are to human health due to SO gas as air pollutant?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 1.0k views

CO is a hidden enemy, explain its action.

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

0 like 0 dislike

1 answer 672 views

CO2 is responsible for heating up atmosphere, how?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

Page:

« prev
1
...
933
934
935
936
937
938
939
...
970
next »

Free Hit Counters

Recent questions

...