What is the systematic process of asking questions about the observable world by gathering and studying information called?

• Philosophy

• Science

• Art

• Literature

What does the universe's observable mass mostly consist of?

• Oxygen atoms

• Carbon atoms

• Hydrogen atoms

• Nitrogen atoms

What is the average depth of the ocean according to Table 1.1?

• 3,682 meters

• 10,994 meters

• 6.5 kilometers

• 34.482 grams per kilogram

Which of the following is NOT mentioned as a characteristic of Earth in the text?

• Earth is large enough to hold an atmosphere.

• Earth is too large for gravity to overwhelm.

• Earth has a stable star.

• Earth has a high average temperature.

What is the average depth of the ocean?

• 840 meters

• 3,682 meters

• 2,686 meters

• 1,380 meters

What is the role of climate specialists according to the text?

• To study the nature and distribution of marine organisms

• To investigate Earth's role in climate change

• To design and build ships and harbors

• To study the ocean's dissolved solids

What is the scientific method based on?

• The assumption that nature is unpredictable

• The belief that natural phenomena do not change

• The assumption that nature plays fair

• The idea that questioning is unnecessary

What is the approximate age of the universe according to the text?

• 4.5 billion years

• 13.7 billion years

• 10 billion years

• 20 billion years

What is the most abundant form of matter in the universe shortly after the big bang?

• Helium

• Oxygen

• Hydrogen

• Carbon

How fast does our solar system orbit the galactic center?

• 100 kilometers per second

• 220 kilometers per second

• 300 kilometers per second

• 400 kilometers per second