Answer:
The sun is a major source of ultraviolet rays. Though the sun emits all of the different kinds of electromagnetic radiation, 99% of its rays are in the form of visible light, ultraviolet rays, and infrared rays (also known as heat).
Explanation:
Answer:
Explanation:
ECONOMIC ACTIVITIES:
1. Wealth producing activities.
2. Satisfying human wants.
3. Money income
MANS SOCIAL LIFE:
1. Man is a social animal . He has a natural urge to live an associated life.
You would land down to ground and die
Answer:
The answer is 50,000,000
Explanation:
Plague has been responsible for widespread pandemics with high mortality. It was known as the "Black Death" during the fourteenth century, causing an estimated 50 million deaths, approximately half of them in Asia and Africa and the other half in Europe, where a quarter of the population succumbed.
