Question

13. Why chloroplasts are found only in plant cells?
16. Write difference between prokaryotic and Eukaryotic cell.
17. Why a red blood cell does not reproduce?
18. Define organ system and it's one example,
19. What is marble cancer?
20. Why does mathura refinery pose problems to the Taj Mahal?
21. What is mean by Deforestation? Explain causes of deforestati
22. What is mean by Natioanl park?
23. What are the causes of air pollution?
24. How can you save our green wealth?
25. Why carbon monoxide is considered to be a dangerous pollu
26. Explain the difference between pure air and polluted air?
27. Prepare a brief speech on Global warming.
28. What is plan implemented to save river Ganga called?
29. What is Ozone? How is it helpful for our environment?​

Answer 1

Answer:

chloroplasts found only in the plant cell because there is a part in plant known as plastids, they produce chlorophyll to prepare the food. so chloroplasts found only in the plant cell.

Answer 2

Answer:

16.

prokaryotic cell has a primitive cell wall, no nucleus, instead a nucleoid region. It has no organelles and is usually unicellular or independent. It has rna instead of dna.

eukaryotic cell has well defined nucleus and organelles, it can exist in colonies or independently and contains dna+rna.