Answer: Total volume of fat in his body is 
Explanation:
Density is defined as the mass contained per unit volume.

Given:
Density of fat cells = 
mass of fat cells = 20% of the mass of a 70 kg student's body is fat= 
Volume of fat = ?
Putting in the values we get:


Thus total volume of fat in his body is 
Having compassion in sport can be found when you do everything except embarrassing less skilled players - B.
When you do that, you're laughing at players who perhaps haven't been training as long as you have and aren't as skilled for that reason as you are.
Answer: The options are enlisted incorrectly
1. variety
2. balance
3. moderation.
4. calorie control
5. adequacy
The correct answer is adequacy.
Explanation:
Nutrition adequacy can be defined as the sufficient intake of essential nutrients, that are required to fulfill the nutritional requirements for maintaining the optimal health. This involves the sufficient intake of each kind of food so that the body remains free from deficiency.
Other parameters of a diet includes:
Balance: Not too much intake of any kind of food.
Calorie control: Not too much intake of calories.
Moderation: Not too much intake of food containing sugar, salt and fat.
Variety: Intake of as many as different kind of food as possible or including in the diet plan.
1 st expression = (a+b)^2
(a+b) (a+b)
2nd expression = a^2-b^2
= (a+b) (a-b)
therefore hcf = ( a+b)