Questions

When did India's population touch 100 crore mark

As per Indian Protocol, who among the following ranks highest in the order of precedence?

Read each sentence to find out whether there is any error in any part

For young Donald(a), peace in Vietnam(b) was almost terrible as war(c). No error.(d)

Improve the bracketed part of the sentence.

By 2030 India (would) have become the most populous country in the world.

Improve the bracketed part of the sentence.

If a person (studied) the history of the Maratha empire, he would have wondered how a small warrior tribe could have challenged the mighty Mughals.

Statement I :

By far the most common topographic form in a Karst terrain is the sinkhole.

Statement II :

Topographically, a sinkhole is a depression that varies in depth from less than a meter to few hundred meters.

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?

The central principle of physiology is