The best way to keep our bones strong within the options that were provided would be (B) Preform muscle strengthening exercises regularly.
From these options we can definitely use the "process of elimination". Option (C) would be thrown out immediately, as vitamin D is an absolute necessity for bone health because Vitamin D actually helps absorb the calcium into our system. So we'd definitely want to get a lot of natural Vitamin D by the sun (but remember your sun block!).
Secondly, option (D) would be thrown out, also. You want to consume dairy products because that's where your natural calcium comes from. As previously established, our bones REQUIRE calcium. Without the calcium, our bones will become brittle.
Lastly, option (A) would help mostly your muscles by stretching. Stretching daily is very important to your physical health and your posture and a lot of other benefits but it's not really related to your bone health.
Thus, the only option that would fit would be, option (B). strength training is extremely beneficial to our bones!
Answer:
1. Micro-organism
Explanation:
Micro organism are disease causing agents,which cannot be seen with the human naked eyes. The use of of magnification lens or microscope goes a long way in making them visible.
People living within the Australia's major city are exposed to a lot of disease causing organism than those who stays outside the city.
A city is been define as a collection of heterogeneous set of people,and a key criteria is it's population.
Daily business activities within the city surpasses that which happens outside the city.The handling of door knobs,elevators buttons ,stair rails and other common objects which can be touched by humans,there by making the transmission and inhabitation of fungi,viruses and bacterial infection more likely within the major cities.
Ruunig and it is this becasue it makes your muscles retrct over and over agin
