greenhouse effect.ppt

green house effects on environment

1. GREENHOUSE EFFECT
A natural phenomenon..
SUBMITTED BY:
VANSH BANSAL
X A

2. WHATISAGREENHOUSE ?
•Greenhouses are special buildings
usually made from glass and steel.
They are used to grow plants that
need humidity, tropical
temperatures, and constant growing
conditions.
•In a glass greenhouse, heat builds
up and gets trapped due to
presence of carbon dioxide and
other heat trapping gases in the
upper atmosphere. It offers plants a
warm and humid environment, even
if the outside weather is dry, windy,
or cold.

3. GREENHOUSE EFFECT

When the sunrays
enters the earth’s
atmosphere which is
made up of several
layers of gases and
reach the planet Earth,
the Earth’s surface
land, water and
biosphere –absorb the
solar energy. Once
absorbed, this energy
gets recycled into the
atmosphere.

4. GREENHOUSE EFFECT ( CONT.)
The gases like water vapour,
carbon dioxide, nitrous oxide,
methane and ozone, which are
present in the atmosphere, trap
energy from the sun and
prevent the heat from escaping
back into the space. Though
some of the energy passes
back into space, most of it
remains trapped in the
atmosphere, which causes the
Earth to heat up. These gases
are known as greenhouse
gases and this natural process
of maintaining the Earth’s
average temperature and
keeping the Earth warm is
known as the Greenhouse
effect.

5. CAUSESOFGREENHOUSE EFFECT
NATURAL
GREENHOUSE GASES
MAN-MADE
GREENHPUSE GASES

14. WHAT CAN WE DO??
REDUCE THE
WORLD
POPULATION.
MAINTAIN THE
CURRENT
LEVELS OF CO2
IN THE
ATMOSPHERE.
REDUCING
CARBONDIOXIDE
EMMISION TO
THE
ENVIRONMENT.

16. SUBMITTED TO:
MR. AMITRAI
 SUBMITTED BY:
 VANSH BANSAL
 X A