The answer is explained below.
Explanation:
Necessary is something which is obligatory, required, essential, needed to be done, compulsory and mandatory.
There is a difference between necessary and sufficient. Necessary is obligatory whereas sufficient is something which is enough.
Example of Necessary can be taken as:
- Money is necessary to fulfill basic needs, e.g, money is needed to buy food, cloths, shelter, etc.
- All relationships are necessary in someone's life, e.g, the relationship of parents is not sufficient, rather a person needs friends, spouse, kids, etc in his/her life as well.
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Answer:
D. Fixed percentage of RM method
Explanation:
When we measure muscular endurance it is very important to make it equal to all participants. This can be done using a fixed percentage of a one-repetition maximum or 1RM. We can set it to 70% so a person who can lift 100kg would have to lift 70kg for as many repetitions that they can. This way a large and small person would be equal in weight but not in endurance.
Contaminated water is the most common mode for the transmission of schistosoma haematobium. When an individual is expose to the contaminated freshwater sources, he/she may suffer schistosoma haematobium, which is deadly especially if not given enough medical attention.
Moreover, this disease can be acquire from exposure with water containing the parasites through an open wound, mouth or lips.