
The correct choice is ~ A
Bikes don't require gasoline for their functioning, so it causes less air pollution.
Yes, in general, metalloids are slightly reactive.
Answer with Explanation:
"Red Blood Cells" <em>(RBCs)</em> contain <em>Hemoglobin</em> that is responsible for carrying oxygen into the body. When people are exposed to higher altitudes, <u>the number RBCs in the body increases</u>. This is because the body has a hard time taking in oxygen due to <u>low atmospheric pressure</u>. It makes it hard for oxygen to pass through the lung membranes. This is called "hypoxia." Such condition deprives the body from oxygen, thus, it creates more red blood cells in order to compensate the condition.
When it comes to people living at sea level,<em> the oxygen can easily pass through the lung membranes</em> due to <u>higher atmospheric pressure.</u> This doesn't require the body to build new RBCs. Therefore, the numbers of RBCs needed by people to thrive is lower than living at higher altitudes.
Explanation:
In physics, force is a quantitative description of an interaction that causes a change in an object's motion. ... It is defined as Mass x Acceleration = Force. The SI unit of force is the newton (N); defined as the unit of force which would give to a mass of one kilogram an acceleration of 1 meter per second squared. hope this helps you discover the best answer
A machine that lowers the input force is a step down machine. If the force is lowered, the distance at which the the force is applied will be lowered as well. Assuming that the work done by the force does not stay constant and is affected by force, the distance will be reduced.