What was the initial hypothesis about how Earth's water arrived?

Water Origins and Isotopic Analysis

Interactive Video
•
Science, Chemistry, Geography
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It was created by living organisms.
It was formed by volcanic activity.
It was delivered by meteorites.
It was always present on Earth.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is deuterium?
A form of oxygen.
A heavy isotope of hydrogen.
A type of meteorite.
A type of volcanic rock.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the presence of deuterium in water help scientists understand?
The composition of meteorites.
The age of the Earth.
The origins of Earth's water.
The temperature of the early Earth.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the isotopic ratio of deuterium to hydrogen?
It shows the temperature of water.
It reveals the source of water.
It indicates the presence of life.
It helps date the age of water.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Lydia Halas's study focus on?
The evaporation of water into space.
Water trapped in volcanic glass.
The role of comets in delivering water.
The isotopic composition of ocean water.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was a key finding from the study of water trapped in volcanic glass?
It was lighter than ocean water.
It contained no deuterium.
It was heavier than ocean water.
It was identical to comet water.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Halas's findings suggest about the origin of Earth's water?
It was created by living organisms.
It was formed by volcanic activity.
It was present from the beginning.
It was delivered by comets.
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