Suggest some methods to assist infertile couples to have children.

Suggest few methods to avoid corrosion.

Suggest some precautions to avoid cardic problems?

Suggest some methods to minimise pollution due to industrial waste

Suggest two methods to find out wind direction at a given place.

Divya suggested some methods to separate mixtures given below. Are they correct?Find whether they are possible or not. Give reasons. Pure water can be obtained from sea water by the process of filtration.

Divya suggested some methods to separate mixtures given below. Are they correct?Find whether they are possible or not. Give reasons. Cheese can be removed from curdled milk by decantation.

Divya suggested some methods to separate mixtures given below. Are they correct?Find whether they are possible or not. Give reasons. Separation of sugar from tea can be done by filtration.

Suggest some measures to control soil pollution.

Suggest methods to spread awareness in the community about conservation of natural resources?

There are 800 families with four children in each family Assuming equal channce for every child to be a boy or a girl the number of familes expected to have children of both sexes is