NATURAL RESOURCES
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
seminar class
Active In SP
**

Posts: 5,361
Joined: Feb 2011
#1
28-02-2011, 03:46 PM



.ppt   NATURAL RESOURCES.ppt (Size: 558 KB / Downloads: 337)
NATURAL RESOURCES
1.AIR

The mixture various gases like o2,co2,watervap-
Our,nitrogen, etc is called air.
It comprises of atmosphere-
The multilayered gaseous envelope surrounding The planet earth is called atmosphere.
THE BREATH OF LIFE : AIR
Air :Air is a mixture of different gases.
Atmosphere : The blanket of air which covers the earth
ROLE OF ATMOSPHERE
Atmosphere controls the temperature of planet.
It generally makes the temperature constant.
Different layers of atmosphere-
1. Troposphere-10-20km
2. Stratosphere-20-50km
3. Mesosphere-50-100km
4. Ionosphere-100-200km
5. Exosphere –200-50km
AIR POLLUTION
Presence of various toxic gases in the atmosphere like carbon dioxide, carbon, mono oxiode, xides of sulphur, nitrogen, fluoride, lead,nickel,arsenic,cadmium, etc causes Air Pollution.
SOURCES OF AIR POLLUTION-
1. Heavy metals.
2. Photochemical smog.
3. Smokes.
4. Ionising radiation.
5. Automobile exhaust.
6. Biocides elements.
7. Radioactive elements.
8 Industrial waste
2.WATER
Water- The most unusual natural compound found on earth and which fulfills almost various demands of different living things.
About three fourth of the earth surface that is
75 are covered with water.
Now day’s water is also being polluted by human beings.
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  NATURAL RESOURCES REPORT study tips 0 442 25-06-2013, 11:30 AM
Last Post: study tips
  NON-CONVENTIONAL ENERGY RESOURCES project report helper 5 4,913 23-03-2013, 09:42 AM
Last Post: study tips
  Natural Resources of Bangladesh ppt seminar flower 0 767 31-08-2012, 12:07 PM
Last Post: seminar flower
  RENEWABLE RESOURCES seminar paper 0 450 24-03-2012, 01:23 PM
Last Post: seminar paper