How Old Was the Universe When Dark Energy Began to Accelerate

question 52

Multiple Choice

How old was the universe when dark energy began to accelerate its expansion?

• A) less than 1 second old
• B) 400 000 years old
• C) 1 billion years old
• D) 8 billion years old

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Definitions:

Learned

Acquired or developed as a result of experience, study, or being taught.

Territory

Area from which an animal or group of animals actively excludes others.

Exclusive Area

A zone or space that is reserved for a particular purpose or access is restricted to a certain group.

Biome

A large community of plants and animals that occupies a major habitat, like forests, deserts, grasslands, or tundra, defined by its vegetation type and adaptations to the climate.