Flow channels on Venus suggest it was once rich in water

a. True
b. False
Indicate whether the statement is true or false


False

Physics & Space Science

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Chondritic meteorites provide important clues because they are believed to

A. contain grains from the first material that condensed out of the Solar nebula. B. be the only source of the necessary amino acids required for life. C. be the source of all coal found on Earth. D. contain many rare metals.

Physics & Space Science

Which event in the history of the universe happened last?

A) Stable helium nuclei formed. B) The electroweak force separated into electromagnetic and weak nuclear forces. C) The GUT force separated into the electroweak force and strong force. D) Neutral atoms formed.

Physics & Space Science

A totally eclipsed moon glows coppery red because

a. the moon' surface is made of iron ore which is red in color. b. red light is cooler than blue light. c. during a lunar eclipse the sun is cooler than normal and its light is more red. d. only red light is able to pass completely through Earth's atmosphere and reach the moon. e. the moon appears red during a total solar eclipse, not a total lunar eclipse.

Physics & Space Science

When air gains speed in sweeping across a rooftop its internal pressure is

A) reduced. B) unaffected. C) increased.

Physics & Space Science