How Much Hair Does a Human Grow on Average in a Lifetime?

Answer The average human body has 1.4 million hairs on it at any given time. Given an average lifespan of nearly 80 years and an average hair growth cycle of three years, a person can grow 40 million hair... Read More »

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How much skin does a human shed in a lifetime?

Due to the body's process of replacing older skin cells with new, the older skin cells slough off over a period of time. Because of this, a human sheds approximately 40 pounds of skin throughout he... Read More »

How many lemons does a lemon tree produce in its lifetime?

A lemon tree can potentially produce over 90,000 lemons in its lifetime. The exact number depends on the conditions that affect the tree's yield, and the length of the tree's life. Healthy trees ca... Read More »

Does solar energy produce harmful waste?

On One Hand: Directly, NoAccording to the U.S. Energy Information Administration, using solar energy does not produce any harmful waste or environmental pollution as a byproduct. The benefit of sol... Read More »

How many tons of hazardous waste does each person produce per year in the United States?

Each person in the United States produced approximately 0.155 tons of hazardous waste annually in 2007, the last year for which statistics are available. During that year, 46,693,000 tons of hazard... Read More »