Answer: magazines, radio, television, and the Internet
Hydrogen is used by plants which combine it with carbon during the photosynthesis process and release oxygen into the atmosphere which is used by all living beings.
your answer for this question is B)
Answer: around December 21 in the Northern Hemisphere, which means January is usually the coldest month.
Summer solstice is on or around June 21 in the Southern Hemisphere, which means that July is usually the warmest month.
