Forests are essential for maintaining ecological balance by preventing soil erosion, landslides and air pollution, and attracting rainfall. They also help control noise pollution and keep seasonal cycles favorable. To conserve forests, cutting down trees must be banned and deforestation not allowed. Several international organizations like IUCN, WWF, UNEP, and WCS have taken steps to protect forests from depletion. Oceans cover 70% of the earth's crust and provide resources like algae, animals, plants and minerals for humans. Conservation of oceans requires limiting greenhouse gas emissions to prevent global warming.

1.  The terrestrial area densely covered by trees and
shrubs is called forest

2.  The forest & wildlife are most essential to maintain
ecological balance
 They are helpful in checking the soil erosion ,
landslides , air pollution ,maintaining the soil
and in attracting the rainfall,
 They also control noise pollution
 The green forest keep the seasonal cycle favorable
 TO CONSERVE FORESTS
 (a)The cutting of trees must be banned
 (b)The deforestation must not be allowed

3. The people have took steps to prevent depletion of
forest
1 International union for conservation of nature & natural
resources(IUCN)
2The people took steps to protect forest from depletion
3World wildlife fund(WWF)
4United nations environment programmed (UNEP)
5World conservation strategy(WCS)

4. Marine or oceans
 About 70%part of our earth’s crust is covered by ocean
.These are the resources of algae, animals, sea plants and
minerals required for human
 To conserve oceans, the rate of increase of green house
gases in our atmosphere must be checked so that global
warming is prevented