A student wrote seven statements in a revision list…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A student wrote seven statements in a revision list. Say which are right, and correct the wrong ones.
- Hotspots cover less than per cent of the land.
- Strict protection of hotspots could cut extinctions by per cent.
- The core zone of a biosphere reserve may have farms.
- A zoo is an in situ method.
- Extinct in the Wild means that the species has no living individual.
- The Earth Summit was held at Johannesburg.
- The most important cause of the loss of biodiversity is habitat loss and fragmentation.
Need a reminder? The key ideaShow
The Earth Summit was held at Rio de Janeiro in 1992. At Johannesburg in 2002, 190 countries pledged to reduce the rate of biodiversity loss significantly by 2010. NCERT gives India 14 biosphere reserves, 90 national parks and 448 wildlife sanctuaries. These summits are not in the NEET syllabus.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Right.
Step 2. (b) Wrong. It could cut the extinctions by almost per cent. The per cent is the land.
Step 3. (c) Wrong. The core zone has no human activity.
Step 4. (d) Wrong. A zoo is ex situ.
Step 5. (e) Wrong. Some individuals live in human care. An extinct species has none.
Step 6. (f) Wrong. It was at Rio de Janeiro, in . Johannesburg was in .
Step 7. (g) Right.
Answer: (a) and (g) are right. The other five are wrong.
Watch out. Only two of the seven are right.
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