True or false, DNA is single stranded

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

Identify the area on the image where the force of attraction is the strongest.

Which best describes how sediment forms? loose material is cemented by pressure. erosion breaks down rock and other material. molten rock cools above earth's surface. chemical changes cause sediment to compact together.