Describe and discuss the early atmosphere of Earth? What was its most likely composition?
How was it different from the present atmosphere? Why? What will be an ideal response?
The student should recognize that the early atmosphere of Earth formed by outgassing. Archean
volcanoes probably emitted water vapor, carbon dioxide, sulfur dioxide, carbon monoxide,
sulfur, etc. There was very little free oxygen. The present-day atmosphere has changed in a
variety of ways, probably most profoundly by the release of oxygen gas by photosynthetic
organisms.
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Heat and temperature are synonymous terms
a. True b. False
Unlike a transverse wave, a longitudinal wave has no
A) amplitude. B) frequency. C) wavelength. D) speed. E) all of the above
While hiking with two of your classmates, you observe an outcrop of sandstone rich in quartz and feldspar. Friend A says that the sand grains in the rock were eroded from a nearby basaltic volcano
Friend B says that the sandstone was derived from a more distant granite outcrop. Which one of your friends is right and why? What will be an ideal response?
Which of the following can cause tsunamis?
a. Earthquakes b. Landslides c. Volcanic eruptions d. All of the above