Questions

Which of the following is present in the largest amount in terms of percent by mass in the earth's crust

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.

From the second half of the 20th century what has caused a dramatic fall in black rhinoceros population?

Improve the given sentence if necessary.

He wanted my permission to taking part in sports.

Rearrange the parts of the sentence in correct order.

No democracy

P-­can survive without the
Q­-philosophical imagination
R­-roots of such an ethical and

Which statements are CORRECT?

I. In early 1930’s Nylon was prepared from coal, water and air.

II. Nylon was the first fully synthetic fibre.

III. Nylon fibre was strong, elastic and light.

A prescribed set of well-defined instructions for solving mathematical problems is called ________

Which method for treating arthritis is an example of pseudoscience?

The first Indian to share the Oscar award was