The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ____ . (Fe / Mg / Pb / Al)

The process causing an undesirable change in the environment.

Give the Biological / technical term

Give a reason: Kanyakumari experiences equable climate.

The product of two consecutive natural numbers which are multiples of 3 is equal to 810. Find the two numbers.

The following diagram demonstrates a physiological process taking place in green plants. The whole set up was placed in bright sunlight for several hours. Study the diagram and answer the questions that...

There is plenty of rain in India during the rainy season, yet we need irrigation. Give two reasons to support this statement.

With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for a machine of a given design.

Name the last Viceroy of India. State any one of the provisions of the Indian Independence Act of 1947.

The ratio of amplitude of two waves is 3 : 4. What is the ratio of their:

1. loudness?
2. frequencies?

With reference to the powers and functions of the High Court. Explain briefly the meaning and scope, The High Court as a Court of Record.

A uniform meter scale is in equilibrium as shown in the diagram:

1. Calculate the weight of the meter scale.
2. Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is
...

Ureter and Urethra [function]

Differentiate between the following pairs on the basis of what is indicated in the brackets.

How is the frequency of a stretched string related to:

1.  its length?
2. its tension?

If an element has a low ionization energy then it is likely to be __________ (metallic / non metallic).

Write the equation for the formation of aluminum at the cathode during the electrolysis of alumina.

Solve the following inequation and represent the solution set on the number line.