What was work like in the 1950s? Jobs were mainly industrial or agricultural, with many men working in blue-collar jobs as mechanics, plumbers, bus drivers, warehouse workers and road construction workers. Some worked in office jobs as executives and middle management. How long was the school year in 1950? 150 days What were schools like […]
Why should we protect our environment?
Why should we protect our environment? Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. Biodiversity is the key indicator of the health of an ecosystem. A wide variety of species will cope better with threats than a limited number of them in […]
How small can a laser beam be?
Do professional growers use LED?
Do professional growers use LED? Consider Using Both LED and HID Grow Lights Most professional growers find the most success with HID lights. LED grow lights make a solid addition to the space. They’ll help you bring more light to your space, especially as under canopy lighting. What company makes the best grow lights? The […]
What are the two main risk factors for food?
What are the two main risk factors for food? TOP 5 CDC RISK FACTORS. CONTRIBUTING TO FOODBORNE ILLNESS. Did You Know… 1) Improper hot/cold holding temperatures of. 2) Improper cooking temperatures. 3) Contaminated utensils and equipment. 4) Poor employee health and hygiene. 5) Food from unsafe sources. Remember… What is the number one cause of […]
What was the biggest eruption in history?
What was the biggest eruption in history? Tambora What country has the most historically active volcanoes? Indonesia Which country has most volcano? Mapped: The Countries With the Most Volcanoes – Where Does Indonesia Rank? United States – 173. Russia – 166. Indonesia – 139. Japan – 112. Chile – 104. Ethiopia – 57. Papua New […]
What does the mean tell us about a distribution?
What does the mean tell us about a distribution? The mean is the arithmetic average, and it is probably the measure of central tendency that you are most familiar. Calculating the mean is very simple. You just add up all of the values and divide by the number of observations in your dataset. However, in […]
What holds heat the longest?
What holds heat the longest? Zeolite thermal storage retains heat indefinitely, absorbs four times more heat than water – ExtremeTech. Does lava rock absorb heat? Of lava rock, glass and stones, each absorbs and retains heat quite differently. Lava rock is very porous and hardly holds heat at all. Stones are at the other end […]
Who named energy?
Who named energy? Thomas Young (1773 − 1829) first introduced the word “energy” to the field of physics in 1800, but the word did not gain popularity. Thomas Young later established the wave nature of light through interference experiments. What are 10 facts about energy? 10 interesting things about energy Always turn off lights when […]
Is inch bigger than feet?
Is inch bigger than feet? Since a foot is longer than an inch, this means the answer would be greater than . Find the conversion factor that compares inches and feet, with “inches” in the numerator, and multiply. There are 42 inches in feet. Which units are used to measure a rug? A square centimeter […]