A. High energy radiation produced in the ozone layer. (:
Hydrogen as it has only 1 proton and therefore only an atomic mass of 1...
If the states of matter have changed such as from solid to liquid, you have to remove or add energy.
<u>Answer:</u> The correct answer is Option D.
<u>Explanation:</u>
We are given that car travels with a speed of 80 km/hr and we need to convert it into hm/s.
For that we use the conversions:
1 kilometer = 10 hectometer
And, 1 hour = 3600 seconds
To convert the quantity into hm/s, we multiply the numerator which is 80 by 10 to convert the whole quantity into hm/hr and now, to convert the result into hm/s finally, we divide the result by 3600.

Hence, the correct answer is option D.
Answer:
planets,meteoroids and asteroids
Explanation: