Question

Scientists have catalogued 13
1.4 million living species with which mankind shares the
earth. Estimates
14
widely as regards the still -uncatalogued living species
15 reckon that about three to a hundred million other living species still 16
unnamed in 17_darkness.
Do as Directed. (each carries 1 mark)
[04]
18. Are we to leave our successors a scorched planet of advancing deserts, impoverished landscapes
and ailing environment? (Make it Assertive)
19. What goes under the pot now costs more than what goes inside it. (Add a Question Tag)
20. The concept of sustainable development was popularized in 1987 by the World Commission on
Environment and Development. (Change the Voice)
21. The growth of world population is one of the strongest factors distorting the future of human
society. (Change the Degree - Positive)​

Answer 1

Explanation:

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