Which factor explains why coal dust is explosive?

temperature

surface area

concentration

addition of catalyst

Which lung sound possesses the characteristics of being louder and higher in pitch, with a short silence between inspiration and expiration and with expiration being longer than inspiration? A) BronchovesicularB) VesicularC) BronchialD) Tracheal

What kinds of evidence can be used to show that a supercontinent once existed?

If 5 hints to stop germs from spreading when cooking or preparing food

What is the normal range of blood pressure

Describe a positive feedback cycle produced by overgrazing

Which statement best describes messenger RNA? [Multiple Choice] A. It transfers polypeptides to the nucleus. B. It's chemically more complex than DNA. C. It had one Oxygen atom less than DNA. D. It's composed of a single strand of nucleotides.

An allele that masks another allele is known as

Is there penicillin in acyclovir

Noah wants to show the largest source of carbon on Earth for his school project. According to his research, in which form is most of the carbon on Earth stored?

True or false: most drugs are eliminated by the kidneys in urine although some are excreted in saliva, sweat, or exhalation. a. True b. False