What can an individual do to reduce waste at home?

Marine fish when placed in tap water bursts because of:

1. Endosmosis
2. Exosmosis
3. Diffusion
4. Plasmolysis

(i) Define couple

(ii) State the S.I. unit of moment of couple.

The immunity acquired by providing readymade antibodies from outside for treating certain infectious diseases.

So the little girl walked about the streets on her naked feet, which were red and blue with cold. In her old apron she carried a great many matches, and she had a packet of them in her hand as well.

(i)...

The figure below shows a simple pendulum of mass 200 g. It is displaced from the mean position A to the extreme position B. The potential energy at the position A is zero. At the position B the...

Calculate the mass of ice required to lower the temperature of 300g of water at 40°C to water at 0°C.

(Specific latent heat of ice=336 J/g, Specific heat capacity of water=4.2 J/g^oC)

Give a reason: Kanyakumari experiences equable climate.

Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given:

1. The ionization potential of Potassium is _____ that of Sodium.
2. The
...

Action of Sodium hydroxide solution on ferrous sulphate solution.

What is the maximum gap allowed between the two parliamentary sessions?

Using the Remainder Theorem find the remainders obtained when x³ + (kx + 8)x + k is divided by x + 1 and x - 2.

Hence find k if the sum of the two remainders is 1.

To increase the pH value of a neutral solution, we should add:

1. an acid
2. an acid salt
3. an alkali
4. a salt

Name three traditional means of irrigation.

A solid spherical ball of radius 6 cm is melted and recast into 64 identical spherical marbles. Find the radius of each marble.

The horrors of the two World Wars, led to the formation of the United Nations Organisation, while the formation of the Non-Aligned Movement followed later. In this context, Explain any four factors that...