Share/Like This Page
Print Instructions

NOTE: Only your test content will print.
To preview this test, click on the File menu and select Print Preview.

See our guide on How To Change Browser Print Settings to customize headers and footers before printing.

Earth’s Early Atmosphere (Grade 10)

Print Test (Only the test content will print)
Name: Date:

Earth’s Early Atmosphere

Earth's atmosphere has had                 major stage(s) in its evolution.
  1. one
  2. two
  3. three
  4. four
What gases do scientists speculate were lost from Earth's primordial atmosphere, shortly after it formed?
  1. nitrogen and oxygen
  2. hydrogen and helium
  3. oxygen and hydrogen
  4. carbon dioxide and oxygen
Which best approximates the number of years after Earth's formation that its primordial atmosphere was lost?
  1. 1,000
  2. 1,000,000
  3. 100,000,000
  4. 10,000,000,000
The gases that formed the early atmosphere originated primarily from
  1. solar wind.
  2. photosynthesis.
  3. meteorite impact.
  4. volcanic eruptions.
During what geologic era did free oxygen begin to accumulate in the atmosphere?
  1. Cenozoic
  2. Mesozoic
  3. Paleozoic
  4. Precambrian
Which process was largely responsible for today's atmospheric concentration of free oxygen?
  1. volcanism
  2. convection
  3. weathering
  4. photosynthesis
Earth's early atmosphere most likely had a much higher concentration of carbon dioxide than today's atmosphere. What happened to the carbon dioxide? Select two.
  1. It was dissolved into ocean water.
  2. It was consumed by early life forms.
  3. It was stripped from Earth by solar winds.
  4. It was locked in sedimentary rocks and fossil fuels.
Which of the following provides evidence of "The Great Oxidation Event"?
  1. presence of ancient impact craters
  2. isotopic studies of sedimentary rocks
  3. chemical composition of today's oceans
  4. travel times of seismic waves through earth materials
Which of the following is thought to be a source of oxygen in Earth's early atmosphere?
  1. outgassing
  2. precipitation
  3. cyanobacteria
  4. tectonic activity
Which word best describes current scientific understanding of Earth’s early atmosphere?
  1. certain
  2. evolving
  3. complete
  4. exhaustive
You need to be a member to access free printables.
Already a member? Log in for access.    |    Go Back To Previous Page