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Answers
Answer:
Q6. (a) cholera, diphtheria, bacterial meningitis, tetanus, Lyme disease, gonorrhea, and syphilis.
(b)Bacterial taxonomy senses to be a library catalogue that helps easily access large number of books. Taxonomy therefore helps classifying and arranging bewildering diversity of bacteria into groups or taxa on the basis of their mutual similarity or evolutionary relatedness.
Q7. plastic are harmful for us as they - Danger of Causes Cancer,Low Heat Resistant, Non-Renewable Resource,Decomposes Slowly
Q8. these products are made of thermostatic plastic as it don't bend easily
Explanation:
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6A :- cholera
typhoid
B:- during unfavourable conditions microorganism en close themselves in hard resistant covering for the cyst
7 :- despitedespite being with useful it is advised to restrict the use of plastic because plastics are non biodegradable they do not decompose naturally by the action of microorganisms so the accumulation of plastic waste create environment hazard recycling of plastics is very costly plastics on burning release many poisonous gases causing air pollution
some method by which we can reduce its conjunctions are by following the 4r principle reduce reuse recycle and recover
reduce to avoid to use
reuse the used items
recycle recycling such articles which cannot be used
recover it include the selection of discarded item for specific use
8 saucepan handles electric plugs switch are made from bakelite because bakelite is a poor conductor of heat and electricity therefore it is used in which handles of utensils electrical plugs etc
9 on commercial level food grains are stored at the in Gani bags for those and these are specially used by government agencies like the food corporation of Indiathe conditions for storing the food grains are in Gani bags they are stored about 10 to 15 CM above the ground and about 70 cm away from the walls the godowns are made free of microbes insects and gardens by spraying pesticides
10 when the seeds are first shown in a nursery where the grow into tiny plants called seedlings this siblings are there in plant in the main field this is called transplantation
this is highly advantages as a new hybrid seeds can be produced and no props can be produced without any damage