<span>A portable fire extinguisher can save lives and property. Nevertheless, it has limitation for it is only indicated to put off small fire. It is appropriate to use portable fire extinguisher when the room temperature is only slightly increased. In addition, one must decide to use portable fire extinguisher to fight a small fire only if the room is not filled with smoke and the fire is not growing. Therefore, the answer is B.
</span>
Answer:
Internal can be you don't want bad things happening to your body, you don't want drugs affecting your health,etc.External could be you don't want it to affect your family or people around you.For example, like a cigarette if you are smoking in public you can be affecting others passing by or hanging out with you(external)but if it's just you by yourself smoking it is damaging your lungs(internal)
D. Avoid being with others who smoke
Hope this helps :)
⇰Let O be the point of observation on the ground OX.
⇰Let A and B be the two positions of the jet.
![\bf[ \boxed{➯OM=OL+LM=OL+AB=(x+3000)m \: and \: BM=h \: m]}](https://tex.z-dn.net/?f=%20%5Cbf%5B%20%5Cboxed%7B%E2%9E%AFOM%3DOL%2BLM%3DOL%2BAB%3D%28x%2B3000%29m%20%20%5C%3A%20and%20%5C%3A%20BM%3Dh%20%5C%3A%20m%5D%7D)
⇰ Equating the value of x from (1) and (2),we get;
☆To View full answer drag your screen ⇰
-a urine test
-a blood test
-a rectal prostate exam
