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?

Which one of the following types of waves are used in a night vision apparatus?

Rearrange the parts of the sentence in correct order.

Of these,

P-­mostly two have proved
Q­-to be bones of contention
R­-between the two parties

Janapav hill situated near Indore is the source of which river?

Which of the following is not true about Frictional force?

Rearrange the parts of the sentence in correct order.

This may be essential at

P-where the market fails to deliver
Q-swath of an economy
R-times, but there is a wide

Rearrange the parts of the sentence in correct order.

A dissent in a court

P-­the intelligence of a future day
Q­-to the brooding spirit of law, to
R­-of last resort is an appeal

Rearrange the parts of the sentence in correct order.

P - Freedom of speech is essential for the all round growth and development of a person as well as a nation as a whole.
Q - A nation filled with people full of discontent can never grow in the right direction.
R - It can even create discomfort and dissatisfaction that leads to stress.
S - Imposing restriction on what one speaks or hears can hamper the development of a person.