Why does my hair stand up when I rub a balloon on it? This is because the rubbing creates a negative charge that is carried by electrons. The electrons can build up to produce static electricity. Consequently, when you pull the balloon slowly away from your head, you can see these two opposite static charges […]
Where does most of the heat in the atmosphere come from?
Where does most of the heat in the atmosphere come from? the sun What causes the atmosphere to heat up? Due to the chemical composition of the earth’s atmosphere, most of the infrared radiation emitted by the warm surface never reaches space. Instead the radiation is reflected or absorbed by compounds known as greenhouse gasses. […]
What are 3 ways natural selection can change a distribution of traits?
What are 3 ways natural selection can change a distribution of traits? Natural selection on single-gene traits can lead to changes in allele frequencies and, thus, to changes in phenotype frequencies. Natural selection on polygenic traits can affect the distributions of phenotypes in three ways: directional selection, stabilizing selection, or disruptive selection. What is the […]
Why are steam burns bad?
Are humans born with innate knowledge?
Are humans born with innate knowledge? We are born with innate concepts as the understanding of numbers, language, geometry, moral ideas, and the idea of the Divine. What is Plato’s full name? Aristocles What were Plato’s main ideas? In metaphysics Plato envisioned a systematic, rational treatment of the forms and their interrelations, starting with the […]
Does sugar dissolve faster in hot or cold water?
Does sugar dissolve faster in hot or cold water? Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, […]
Does vitamin D clog arteries?
Does vitamin D clog arteries? But in patients with insufficient vitamin D, immune cells bind to blood vessels near the heart, then trap cholesterol to block those blood vessels. Low levels of vitamin D in people with diabetes appear to encourage cholesterol to build up in arteries, eventually blocking the flow of blood. Can vitamin […]
What are the 3 common units of volume?
What are the 3 common units of volume? Three common units of volume are: cubic centimeters. liters. gallons. What are examples of units of volume? Volume measures capacity. For example, the volume of a bowl is the amount of space inside the bowl or how much water, for example it would take to fill the […]
How safe is Autobahn?
How safe is Autobahn? Is the Autobahn safest? Research by the Federal Highway Research Institute states that the Autobahn experiences fewer vehicle-related fatalities than the U.S. This means this German highway experiences fewer deaths per billion miles traveled than American highways. Which country has highest speed limit? Poland What is highest speed limit in USA? […]
Which noble gas is least Polarisable?
Which noble gas is least Polarisable? Helium Why are Group 18 called noble gases? The group 18 elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are non-reactive and are called noble gases as they have their outermost orbit complete. Due to stable electronic configuration they hardly […]