QUIZ – 2020: INSIGHTS STATIC , 20 July 2021 – Environment – INSIGHTSIAS

Solution: c)

Global Tiger forum is the only intergovernmental international body established with members from willing countries to embark on a global campaign to protect the tiger.

• It is focused on saving the remaining five subspecies of tigers distributed over 13 tiger range countries of the world.

Bangladesh, Bhutan, Cambodia, India, Myanmar, Nepal and Vietnam are the members.

Solution: b)

Solution: d)

Three terms for measuring biodiversity over spatial scales: alpha, beta, and gamma diversity.

1. Alpha diversity: It refers to the diversity within a particular area or ecosystem, and is usually expressed by the number of species (i.e., species richness) in that ecosystem.
2. Beta diversity: It is a comparison of diversity between ecosystems, usually measured as the change in amount of species between the ecosystems.
3. Gamma diversity: It is a measure of the overall diversity for the different ecosystems within a region.

Solution: b)

When you study the composition of living organisms, carbon constitutes 49 per cent of dry weight of organisms and is next only to water. If we look at the total quantity of global carbon, we find that 71 per cent carbon is found dissolved in oceans. This oceanic reservoir regulates the amount of carbon dioxide in the atmosphere.

Solution: c)

• Seaweeds are (thalloid plants) macroscopic algae, which mean they have no differentiation of true tissues such as roots, stems and leaves. They have leaflike appendages.
• Seaweeds, the larger and visible marine plants are found attached to rocks, corals and other submerged strata in the intertidal and shallow sub tidal zones of the sea.
• Seaweeds grow in shallow coastal waters wherever sizable substrata is available.
• Based on the colour of their pigmentation, sea weeds are broadly classified into different classes such as blue-green, green, brown, red, etc.
• Seaweeds are important as food for humans, feed for animals, and fertilizer for plants.
• Seaweeds are also used as the potential indicators of pollution in coastal ecosystem, particularly heavy metal pollution due to their ability to bind and accumulate metals strongly.