What is the cause of soil erosion by water?

why the elephants killed?

what is water?

how can we save water?

what is strip cropping

why are tigers endangerd ?

 WHY     MANY    PEOPLE    CUT    TREES  AND  KILL  ANIMALS ?

What are natural resources?

What are renewable resources?

What are non-renewable resources?

diff between renewable & non renewable resorces of energy?

 y should we conserve water????????????

diff between renewable resources of energy & non renewable resources

 how is soil a renewable resource

how can we stop soil eursion?

how is bronze made?

what  is  the  largest  flower  in  the  world?

what is soil?

how is soil useful?