Tag: biodiversity and classification

Questions Related to biodiversity and classification

Tropical region occurs

  1. At 2$3^0$ N and 2$3^0$ S

  2. Between 2$3^0$ N and 2$3^0$ S

  3. Between $0^0$ and 2$3^0$ N

  4. Between $0^0$ and 2$3^0$ S


Correct Option: A
Explanation:

Tropical region occurs at 23$^o$ N and 23$^o$ S. The region is present at the equator. It is limited in latitude by the tropic of cancer in the north and the tropic of capricorn in the south.

Thus, the correct answer is '23$^o$ N and 23$^o$ S.'

If at high altitudes, birds become rare, the plants likely to disappear are

  1. Pine

  2. Orchids

  3. Oak

  4. Rhododendrons


Correct Option: A
Explanation:

Pines seeds are mainly small and winged, and are anemophilous generally, which means that the seeds are dispersed by wind. However, some seeds are larger and they have only a vestigial wing and are needed to be dispersed by a bird. Thus, If at high altitudes, birds become rare, the plants likely to disappear are Pine plants. Oaks are not generally found at such high altitudes.

So, the correct answer is 'Pine'.

Which one of the following groups of species belongs to one family?

  1. Ferula asafoetida, Elettaria Cardamom, Syzygium aromaticum

  2. Trigonella foenum-graecum, Brassica competris, Cuminum cyminum

  3. Foeniculum vulgare, Ferula asafoetida, Carum copticum

  4. Syzygium aromaticum, Pimenta officinalis, Coriandrum sativum


Correct Option: A

The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

  1. High albedo of clouds, low albedo of water

  2. High albedo of clouds, high albedo of water

  3. Low albedo of clouds, low albedo of water

  4. Low albedo of clouds, high albedo of water


Correct Option: A