(Question)
Q: Bond lengths are intermediate between covalent single bonds and what? Read this paragraph and choose the correct option from the provided answers: Bond lengths are intermediate between covalent single bonds and covalent double bonds. Choices: - trivalent bonds - wavefunction double bonds - gravitational double bonds - covalent double bonds A:
(Answer)
covalent double bonds

(Question)
Q: What scale measures the total energy released by an earthquake? Read this paragraph and choose the correct option from the provided answers: The moment magnitude scale is the favored method of measuring earthquake magnitudes. It measures the total energy released by an earthquake. Moment magnitude is calculated by two things. One is the length of the fault break. The other is the distance the ground moves along the fault. Choices: - moment radiation scale - direct magnitude scale - moment identification scale - moment magnitude scale A:
(Answer)
moment magnitude scale

(Question)
Q: An estimated 99 percent of the species that have ever lived on earth no longer exist, showing that what event is common? Read this paragraph and choose the correct option from the provided answers: Even though large life forms have been very successful on Earth, most of the life forms on Earth today are still prokaryotessmall, relatively simple single-celled organisms. Fossils indicate that many organisms that lived long ago are extinct. Extinction of species is common; in fact, it is estimated that 99% of the species that have ever lived on Earth no longer exist. Choices: - accumulation - over fishing - pollution - extinction A:
(Answer)
extinction