Questions

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.

Sub Sharan Africa has lost how many black rhino genetic lineages in 200 years?

Improve the given sentence if necessary.

He decided to take the help of a guide lest he may miss the way.

Rearrange the parts of the sentence in correct order.

Elections are likely to be held

P-­in 2017 once law and order
Q-­time frame has been set
R-­is restored though no

Rearrange the parts of the sentence in correct order.

The architecture

P-was designed to promote
Q-of the Internet
R-connectivity, not security

What is measured with the Nephometer?

Rearrange the parts of the sentence in correct order.

He spent a third

P­-was of any consequence
Q­-made sure that none of them
R­-of the time describing his tax proposals, but

Rearrange the parts of the sentence in correct order.

Imagine what this can do

P-­the news industry in our part of the world
Q­-for trust in, and engagement
R-­with, professional journalism and

Which of the following is used in making perfumes as well as flavouring agents?