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Exploring Earth's Origins

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Questions and Answers

What was the purpose of the laboratory experiment?

To create a mixture of simple molecules

To study the formation of life on Earth

To examine the potential origin of primitive life forms (correct)

To simulate Earth's early atmosphere and oceans

What were the early life forms that existed on planet Earth?

Fish

Mammals

Primitive bacteria (correct)

Dinosaurs

What are hydrothermal vents?

Hot springs on the ocean floor (correct)

Deep-sea trenches

Underwater caves

Volcanoes on land

When did scientists determine that life forms existed on planet Earth?

3.5 billion years ago Signup and view all the answers

What were the components of Earth's early atmosphere?

Methane, ammonia, hydrogen, and water Signup and view all the answers

What did the laboratory experiment simulate?

The conditions of Earth's early atmosphere and oceans Signup and view all the answers

Which molecule is simply one carbon atom bonded to four hydrogen atoms?

Methane Signup and view all the answers

What is the composition of the atmosphere in Dr. Miller's experiment?

Methane, ammonia, and hydrogen gases Signup and view all the answers

What is the purpose of exposing the simple molecules to ultraviolet light and an electric spark in Dr. Miller's experiment?

To simulate the formation of organic molecules Signup and view all the answers

What happened to the mixture in Dr. Miller's experiment after a week?

It evaporated completely Signup and view all the answers

What did Dr. Miller find in the trap after analyzing the water in his experiment?

Amino acids and other organic molecules Signup and view all the answers

What is the nickname given to the organic molecules produced in Dr. Miller's experiment?

Prebiotic soup Signup and view all the answers

What did Dr. Miller's experiment demonstrate about the building blocks of life?

They could have been produced in primitive Earth's ocean Signup and view all the answers