Question

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

Answer:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. ... Ecosystems can be very large or very small.