The farmer had been using a particular insecticide for a long time. What consequences will it have on
Insect population.

A farmer had been using a particular insecticide for a long time. What consequences will it have on- a) insect population b) soil ecosystem?

The farmer had been using a particular insecticide for a long time. What consequences will it have on Soil ecosystem?

If insects that pollinate crops are killed, what effect will this have on crop production?

What will happen if mechanized fishing continuous for a long time?

What can be the consequences of migration of rural population to urban area?

An object falling through a fluid is observed to have an acceleration given by a=g-bv where g is the gravitational acceleration and b is a constant. After a long time it is observed to fall with a constant velocity. What would be the value of this constant velocity?

(A): Spring balances show wrong readings after they has been used for a long time (R): On using for a long time, spring balances loose its elastic strength