A I think sorry if I’m wrong
Answer:
Deuterium, (D, or 2H), also called heavy hydrogen, isotope of hydrogen with a nucleus consisting of one proton and one neutron, which is double the mass of the nucleus of ordinary hydrogen (one proton). Deuterium has an atomic weight of 2.014
Explanation:
It's called t<span>he trachea.</span>
Hey there!
The answer is
Newtons first law of inertia. "An object with no net forces acting on it which is initially at rest will remain at rest. If it is moving, it will continue to move in a straight line with constant velocity"
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The answer to the question is (A.)
