When We Make an Observation of a Distant Galaxy 10

question 32

Multiple Choice

When we make an observation of a distant galaxy 10 billion light-years away, we are seeing this galaxy as it

• A) is right now
• B) was when the universe was only 10 billion years old
• C) was when the universe was formed
• D) will be in 10 billion year's time

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Definitions:

Homo Erectus

Extinct hominin that arose about 1.8 million years ago in East Africa; migrated out of Africa.

Homo Floresiensis

A species of small-statured humans that lived on the Indonesian island of Flores until roughly 50,000 years ago.

Cartilaginous Fish

Jawed fish with a skeleton of cartilage; a shark, ray, or skate.

Sharks

Cartilaginous fishes belonging to the subclass Elasmobranchii, known for their sharp teeth and predatory nature, playing a crucial role in maintaining marine ecosystem balance.