We may be able to prevent an asteroid impact.
Answer the following statement true (T) or false (F)
True
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A megatsunami might be produced by ________ impact
Fill in the blank(s) with correct word
Which feature on this figure formed after the two terranes were already joined?
A. sediment with fossils (F) B. the pluton (P) C. the overlapping sedimentary unit (O) D. All of these choices are correct.
Which of the following statements best describes the first life-forms on Earth, which existed about 3.6 billion years ago?
A. The first microbial life forms were restricted to what is now the Middle East. B. Microbial life began at the same time the Earth turned into a solid. C. Evidence for the first microbial life forms is found in igneous rocks. D. Microbial life evolved rapidly into more complex life forms in only a few hundred million years. E. Microbial life began at a time when the planet's atmosphere and climate were very different from today.
Why are digital images generally used instead of photographs in satellite remote sensing?
a. Digital images are protected from the possibility of sharing sensitive data. b. Digital images have a fixed resolution. c. Digital images are processed once, simultaneously as they are taken. d. Digital image data can be beamed back electronically from space, and can reproduce a wider part of the spectrum than photos can.