The answer is D I believe
Ultraviolet Rays ( UV rays) can harm humans because they can cause sunburn, and skin cance if you stay out in the sun for too long.
We can change a gas to a liquid by INCREASING the temperature and DECREASING the pressure
Answer: The answer is 2.3 x 10 4's.
Answer:
I also have this question but see the 69 page of ur question book
