The Planet's Population First Reached 1 Billion About the Year

question 27

True/False

The planet's population first reached 1 billion about the year 1500.

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Definitions:

Horizontal

Refers to something that is arranged or lying flat, parallel to the plane of the horizon or perpendicular to the vertical.

Aboveground

Referring to the part of a plant or structure that is visible or exists above the surface of the soil or ground.

Endosperm

The nutritive tissue inside the seeds of most flowering plants, surrounding and nourishing the embryo.

Triploid

A term used to describe cell nuclei containing three sets of chromosomes, common in certain plant species and some animal species, leading to unique genetic traits.