Pat wants to measure the length of a table. she'll use a measuring tape. which units should pat use to express the length?
a)pints b)degrees c)inches d)moles

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.