The answer is B.Start running in hilly areas or trails. Hope this helps!
It can help you keep track of your fitness.
Cancer because of the constant use of them and the niccotine inside as well as the numerous types of poisons inside the ciggerette and the smoke.
Answer:
B. Surface of the skin
Explanation:
If we had mucous on the surface of our skin then our skin would have a thick slippery fluid like substance on it all of the time. Mucuos membranes are present in the digestive tract, mouth, lungs, and more.
