Questions

Which is the gas used for making vegetables and vanaspathi from vegetable oils?

Select the antonym of

amenable

Who was the founder of Nanda dynasty

India is not a member of 

Rearrange the parts of the sentence in correct order

Truth was

P-­to lead to a breach of peace as a false one
Q­-no defence since
R­-a true defamatory statement was as likely

Improve the bracketed part of the sentence.

When I (go) to Paris, I shall visit the Eiffel Tower.

The battle of Mahabharata is believed to have been foughts at Kurukshetra for

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?