Answer:
c. Sodium
Explanation:
Sodium is an essential mineral required by the body. The kidney is the organ in the body the regulates the intake of sodium by humans and animals through osmo-regulation.
It is recommended the the daily intake of sodium per day for humans should be no less than 2300mg.
In elementary school they require fitness tests. For instance, run a mile, do so much sit ups, push-ups,
Answer:
2k(2+4k-a)
Explanation:
The common factor in all the terms is 2k, so you take that outside the bracket. Then, you divide 2k by each of the terms and write them in the given order to complete factorizing
1) It affects the brain
2) Mental alertness
3) irritability
