Name the following elements:

1. An alkaline earth metal present in group 2 and period 3.
2. A trivalent metal used to make light tools.
3. A monovalent non-metal present in fluorspar.

The 4^th term of a G.P. is 16 and the 7^th term is 128. Find the first term and common ratio of the series.

The difference between the birth rate and the death rate.

Give appropriate biological or technical terms for the following:

Some women have facial hair like beard and moustache.

Give biological reason

The property by virtue of which the compound has the same molecular formula but different structural formulae.

Pigment providing colour to urine.

Give the Biological / technical term

Name the Courts that are empowered to issue Writs for the enforcement of Fundamental Rights.

With reference to sugar industries answer:

1. Why should these industries be located close to the sugarcane growing areas?
2. Name two by-products of the sugar industry
3. Mention one leading sugar producing
...

Name three traditional means of irrigation.

Who administers the oath of office to the Council of Ministers?

On what grounds can a Supreme Court Judge be removed from office?

When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.

Give scientific reasons.

Each of the letters of the word ‘AUTHORIZES’ is written on identical circular discs and put in a bag. They are well shuffled. If a disc is drawn at random from the bag, what is the probability that...

How can deepening of the river bed help in preventing soil erosion?

Give a reason: Plastic and polythene products must be banned

The solvent used to dissolve the chlorophyll pigments while testing a leaf for starch is Soda lime.

Rewrite the correct statement by changing the underlined words