36. How can you help in reducing the problem of waste disposal? Give any 3 methods.
37. List out the conventional sources of energy. explain any one in briefly.
38. Two lamps one rated 100w at 220V & the other 60 w at 220V are connected in parallel to
electric mains supply. What current is drawn from the line if the supply voltage is 220V?
39. Explain the fertilization in flowering plants
OR
Explain the structure & function of structural & functional unit of excretory system.
40. Define metallurgy. Draw a neat labeled diagram of electrolytic refining in copper.
41. Here 3 samples are given Vinegar, milk, & lemon juice to identify the nature of samples by using
phenolphthalein indicator mention the inference of it.
42. Write a balanced equations of
2) Photosynthesis process b) Decomposition in lead nitrate
VI. Answer the following:-
16 M
Answers
Answered by
1
Answer:
use 3 r's
incineration
avoid plastic bags
Answered by
0
Answer:
k6
Explanation:
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