Is Matter Around Us Pure? — Science STD 9 — Question

What is other narne of jaundice?

In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as:
Assertion: In crop rotation, two or more crops are grown together on same land.
Reason: It ensures maximum utilisation of nutrients supplied.

Rinderpest is a parasitic disease.

Give two peculiar characters of sponges.

Give two symbols which have been derived from the “Latin names” of the elements.

What is the chemical characteristics of algal cell wall?

Name the type of motion in which a body has a constant speed but not constant velocity.

Name a fresh water sponge?

Discuss the implications of the following statement: “It is interesting to note that poultry is India’s most efficient converter of low fibre food stuff (which is unfit for human consumption) into highly nutritious animal protein food.”

Which is AIDS day?