When Did the Population of the Earth First Reach 1

question 89

Multiple Choice

When did the population of the earth first reach 1 billion?

• A) 1350 B.C.
• B) 550 B.C.
• C) 250 A.D.
• D) 1050 A.D.
• E) 1850 A.D.

---

Definitions:

Basalt

A dark, fine-grained volcanic rock that is low in silica content.

Orbiting Spacecraft

Orbiting spacecraft are human-made vehicles or satellites that revolve around Earth or other celestial bodies, utilized for communication, research, and observation.

Returned Samples

Physical specimens that have been collected from specific locations and returned to a laboratory or facility for analysis.

Geologists

Scientists who study the Earth, its materials, processes, history, and how these factors have shaped the Earth's surface and interior.