According to UN Estimates, by the Year 2050, the Number

question 83

Multiple Choice

According to UN estimates, by the year 2050, the number of people age 65 or older globally will be:

• A) 200 million
• B) 2 billion
• C) 500 million
• D) 1.5 billion

---

Definitions:

Weathered Rock

Rock that has been changed physically or chemically by the action of weather, water, or biological organisms.

Precipitation

Any form of water - liquid or solid - falling from the sky, including rain, snow, sleet, and hail.

Karst

A landscape formed from the dissolution of soluble rocks such as limestone, characterized by sinkholes, caves, and underground rivers.

Iron and Aluminum

Essential metals abundant in the Earth's crust, often forming various minerals and playing crucial roles in industrial applications.