Category: Physics

What occurs in a point mutation? Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the […]

Why is red a danger color? Why are the danger signals red in color? Ans. As the red light has the highest wavelength among all the colours, so it is scattered the least. Due to which most of the light gets reflected back and can travel longer distances through rain, fog, dust etc. to reach […]

What are the 3 types of body composition? Most people are unique combinations of the three body types: ectomorph, mesomorph, and endomorph. Ectomorphs are long and lean, with little body fat, and little muscle. What do dead rows focus on? The dead row is the health fitness exercise which is performed to strengthen the muscles […]

How important are energy resources to a human? As the rate of energy consumption continues to grow, competition for dwindling energy resources only makes it more difficult and expensive to keep up the same levels of consumption. One of the reasons that energy resources are so important is that they make it possible for a […]

How does the voice show work? The Live Shows The television audience will vote to save their favorite artists and the two artists with the lowest number of votes will be sent home each week. In the end, one will be named “The Voice” and will receive the grand prize of a recording contract. How […]

How does pollution play a role in greenhouse effect? Some air pollutants cause the climate to warm. Greenhouse gases prevent some of that heat from leaving the atmosphere. The recent increase in greenhouse gas pollution is trapping excess heat and causing the climate to warm. Air pollution includes greenhouse gases such as carbon dioxide. What […]

Is sulfuric acid a binary compound? It is element stem + “ic acid” (or “ous acid”). This gives names like sulfuric acid and nitric acid. The “hydrogen name” is formed as if the substance were an ionic compound. So the name would be hydrogen sulfate, but that name is hardly ever used. Is hydrocyanic acid […]

Who described the shape of the earth? Isaac Newton What is an oval sphere called? prolate. A spheroid, or ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. A spheroid has circular symmetry. What is a globe? […]

Why is relative frequency important? Relative frequency histograms are important because the heights can be interpreted as probabilities. These probability histograms provide a graphical display of a probability distribution, which can be used to determine the likelihood of certain results to occur within a given population. What is relative class frequency? In a relative frequency […]

How long does water vapor stay in the atmosphere? A drop of water may spend over 3,000 years in the ocean before evaporating into the air, while a drop of water spends an average of just nine days in the atmosphere before falling back to Earth. What is the greatest contributor to nitrous oxide in […]