Q: When does coal release most of its energy? Choices: - when forming - when compressed - when falling - when burning A:
when burning

(Question)
Q: As temperature increases, the solubility of the majority of solid substances does what? Choices: - stays the same - reduces - mutates - increases A:
(Answer)
increases

Ques: Q: The ph scale is a scale used to express the concentration of hydrogen ions in solution. a neutral solution, neither acidic nor basic, has a ph of what? Choices: - 6 - 0 - 8 - 7 A:
Ans: 7

(Q).
Q: What devices do astronomers use to see objects at wavelengths all across the electromagnetic spectrum? Choices: - microscopes - spectrographs - levels - telescopes A:
(A).
telescopes

Ques:Q: The dna is wound around proteins called what? Choices: - leptons - nucleotides - pepsins - histones A:

Ans:histones

Ques: Q: Stringed instruments can help show the relationship between tension and what in strings? Choices: - volumes - temperatures - lengths - frequencies A:
Ans:
frequencies