19) Current scientific knowledge indicates that the most likely origin of most of Earth’s oceans
was due to ________.
A) comets from outer space
B) release of liquid water from the core
C) water vapor released from volcanic outgassing
D) water-bearing minerals found in meteorites
Bloom’s Taxonomy: Remembering/Understanding
Section: 1.6 How Were Earth’s Atmosphere and Oceans Formed?
Essent’l Concept: 1.6 Explain how Earth’s atmosphere and ocean were formed
OSLP: 4 The ocean made Earth habitable.
20) The mechanism by which populations evolve and new species develop is called ________.
A) adaptation
B) evolution
C) descent with modification
D) intelligent design
E) natural selection
Bloom’s Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent’l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 4 The ocean made Earth habitable.
21) One of the reasons that free oxygen in our atmosphere is important to the development and
maintenance of life on Earth is because oxygen ________.
A) combines with iron in volcanic rocks
B) can form ozone and block some UV radiation
C) is necessary for photosynthesis to occur
D) reduces atmospheric temperature
E) was very abundant in Earth’s early atmosphere
Bloom’s Taxonomy: Remembering/Understanding
Section: 1.7 Did Life Begin in the Oceans?
Essent’l Concept: 1.7 Discuss why life is thought to have originated in the oceans
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
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