Is nuclear power bad for the environment? “Nuclear energy has perhaps the lowest impact on the environment — including air, land, water, and wildlife — of any energy source. It produces no harmful greenhouse gases, isolates its waste from the environment, and requires less area to produce the same amount of electricity as other sources. […]
Why are there no more than 5 links in a food chain?
How did Pangea split?
How did Pangea split? Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle. About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland. Which era did […]
What type of reaction is the reaction of magnesium with oxygen?
What type of reaction is the reaction of magnesium with oxygen? Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction. What happens […]
What is a specific and nonspecific immune response?
What is a specific and nonspecific immune response? Nonspecific protective mechanisms repel all microorganisms equally, while the specific immune responses are tailored to particular types of invaders. These immune mechanisms also help eliminate abnormal cells of the body that can develop into cancer. What are the two different specific immune responses? There are two types […]
Why are most plants green in color?
Why are most plants green in color? The longer answer lies in the details of photosynthesis, the electromagnetic spectrum, energy and “special pairs” of chlorophyll molecules in each plant cell. As such, plants look green because they absorb red light most efficiently and the green light is reflected. Who named Chlorophyll is a green Coloured […]
Why does frequency affect wavelength?
Why does frequency affect wavelength? The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer. […]
Is it OK to take 2 rest days in a row?
Which quantum number is incorrect?
Which quantum number is incorrect? In the given question, there are first two options in which the second has the impossible quantum no. and the first has the impossible ‘l’ value. So, the incorrect set of quantum numbers is 1st and 2nd option. How many Subshells are there? 4 subshells How many Subshells are in […]
What is the difference between Formula mass and molecular mass?
What is the difference between Formula mass and molecular mass? The formula mass of a substance is the sum of the average atomic masses of each atom represented in the chemical formula and is expressed in atomic mass units. The formula mass of a covalent compound is also called the molecular mass. The mass in […]