Questions

Which of the following statements concerning atmosphere of the Earth are correct?

1. In stratosphere, temperature increases with altitude.

2. In mesosphere, temperature decreases with altitude.

3. The lowest temperature of the atmosphere is recorded in the upper part of mesosphere.

4. Tropopause is an isothermal zone.

Select the correct answer using the code given below.

Eclipses occur due to which optical phenomena

Read the passage carefully and choose the best answer to each question out of the four alternatives.

Genetic variation is the cornerstone of evolution, without which there can be no natural selection, and so a low genetic diversity decreases the ability of a species to survive and reproduce, explains lead author Yoshan Moodley, Professor at the Department of Zoology, University of Venda in South Africa.

Two centuries ago, the black rhinoceros – which roamed much of sub Saharan Africa – had 64 different genetic lineages; but today only 20 of these lineages remain, says the paper. The species is now restricted to five countries, South Africa, Namibia, Kenya, Zimbabwe and Tanzania. Genetically unique populations that once existed in Nigeria, Cameroon, Chad, Eritrea, Ethiopia, Somalia, Mozambique, Malawi and Angola have disappeared. The origins of the 'genetic erosion' coincided with colonial rule in Africa and the popularity of big game hunting. From the second half of the 20th century, however, poaching for horns has dramatically depleted their population and genetic diversity, especially in Kenya and Tanzania.

Genetically unique black rhinoceros has been lost in all of the following countries, except?

Under which of the following conditions are citizenship be provided in India?

1. One should be born in india

2. Either of whose parents was born in India

3. Who has been ordinary resident of India for not less than five years

The box that contains the central electronic components of the computer is the ..............

The First Mechanical Computer Designed by Charles Babbage was called?

The Indus Valley Civilization was Non-Aryan because

Which of the following is Not a Function?