Exams

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 bracketed part of the sentence.

Let us hurry, or else the bus (will be leaving) the stop by the time we reach there.

The Passive voice of the given Question

 Didn't they tell you to be here by six O'clock  ?

The first-ever National Road Safety Month was observed in which year, in India?

Which one of the following canons of taxation was not advocated by Adam Smith?

Improve the bracketed part of the sentence

I prefer black coffee (over) cappuccino.

Which of the following element is NOT a metal?

Improve the bracketed part of the sentence.

The public vent their anger on social media to protest (toward) police brutality.