Question

1. _______ and _______ Makes the soil infertile.


2. Rivers are suitable for navigation in ______ and ______ Course.

3. Difference between renewable and non renewable resources?


4. What are potential and actual resources.

5. Define the term sustainable development and conservation.

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Answer 1

Answer:

1. insecticides, fertilizers

2. middle, lower

3. Renewable resources are solar energy, wind energy, geothermal energy, biofuels, cultivated plants, biomass, air, water and soil.

In contrast, non-renewable resources are those that are available to us in limited quantities, or those that are renewed so slowly that the rate at which they are consumed is too fast.

4. Potential resources are those whose entire quantity may not be known and these are not being used at present .

Actual resources are those resourceswhose quantity is known. Theseresources are being used in the present. 

5. CONSERVATION AND SUSTAINABLE DEVELOPMENT. The links between policy and practice in natural resource management are often depicted as a cyclical and rational process. In reality, policymaking and implementation are often irrational, unpredictable and highly political

Answer 2

Manures and fertilisers

lower and upper

Renewable resources are those which can be renewed or reproduced by physical, chemical or mechanical processes. E.g :- solar energy, water, forest and wildlife. Whereas Non-Renewable are those which take a long time to get renewed (certainly for millions of year). E.g :- fossil fuel

Potential resources are those resources which are found in a particular region. E.g uranium in leh etc. Whereas actual resource are those resource which are found everywhere. E.g:- air ,water etc.

sustainable development means carefully using the resources and save it for the future.

hope! this will help you