Concept #1 Quiz

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Concept #1 Quiz
Choose the best possible answer to the following questions about Key Concept 1 "The origin of Earth and the evolution of its atmosphere"

This activity contains 6 questions.

Currently, the nebular theory is the accepted model to explain the formation of our solar system. All of the following statements support this idea except _______.

the planetary system is disc-shaped in totalall planets (except Pluto) orbit the Sun in the same planethe Sun is at the center of a disc-like planetary systemthe planets orbit each other as they orbit the Sun

Label the sequence of events describing the nebular origin of the solar system.

The letters A through D appear on an image associated with this question.

The letters A through D appear on an image associated with this question.

For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
2.1 Cooling of the nebula causes condensation of dust into solid particles.

2.2 Accretion of planets.

2.3 Contraction of the nebula into a rotating disk.

2.4 The early solar system is a dust and gas cloud (nebula).

What established the three basic divisions of Earth's interior?

A late time of water filtration.An earrly period of chemical segregation.Meteors.The nebular hypothesis.

What caused the beginning of Earth's atmosphere?

Meteors.Early volcanic eruptions.Asteroids.Late subduction of oceanic plates.

How is today's atmosphere likely different vs. the earliest atmosphere? Choose two that apply.

Outgassing from volcanoes was the only source of atmospheric gas, whereas today oxygen is emitted by plants as well.Outgassing from modern volcanoes is producing today's atmospheric gas, whereas the early atmosphere was supplied by plants.The early atmopshere was likely swept away by "solar wind."Today's atmosphere is being swept away by "solar wind."

How did plants come to alter the atmophere?

Carbon dioxide and water combine to produce oxygen inside plants.Water cannot be converted to oxygen without plants and volcanoes.Photosynthesis converts carbon dioxide from volcanic outgassing into oxygen.Photosynthesis converts oxygen from volcanic outgassing into carbon dioxide.

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