What is biodiversity Why is it important for human life? Biodiversity is important to humans for ecological life support, biodiversity gives a functioning ecosystem that provides oxygen, clear air and water, plant pollutions, pest control, wastewater treatment and lots of ecosystem services. How does biodiversity loss affect humans? More… 2.1 Biodiversity loss has negative effects […]
Can you have a negative mechanical energy?
Can you have a negative mechanical energy? Yes mechanical energy can be negative. Mechanical energy is the sum of potential as well as kinetic energy. Can energy of a body be negative? The kinetic energy of a body cannot be negative because the mass cannot be negative and the square of the speed gives a […]
Where are ground telescopes best located?
Where are ground telescopes best located? For optical telescopes, most ground-based observatories are located far from major centers of population, to avoid the effects of light pollution. The ideal locations for modern observatories are sites that have dark skies, a large percentage of clear nights per year, dry air, and are at high elevations. How […]
What does refractive index indicate?
What does refractive index indicate? Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or […]
Is wavelength directly proportional to frequency?
Is wavelength directly proportional to frequency? Wavelength is commonly designated by the Greek letter lambda (λ). Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths. Which Colour Has Highest intensity? violet What […]
How do we use reflection in everyday life?
How do we use reflection in everyday life? Applications of Reflection of Light in Daily Life Meters like ammeters and voltmeters use a mirror to avoid parallax error. The wing and rear-view mirrors of a car are made of a convex and a plane mirror respectively. A microscope uses a mirror to reflect light to […]
Do living organisms defy the second law of thermodynamics?
Do living organisms defy the second law of thermodynamics? We can view the entire universe as an isolated system, leading to the conclusion that the entropy of the universe is tending to a maximum. However, all living things maintain a highly ordered, low entropy structure. Which law of thermodynamics states that absolute zero Cannot be […]
Are earthquake resistant buildings safe?
Are earthquake resistant buildings safe? The highest category of structural safety is that of “Earthquake Resistant — Operational”. Under this, there would be no damage to the property or any injury caused to its occupants irrespective of the magnitude of the earthquake. Which shape of plan is better in earthquake zone? Hexagons are the best, […]
What should I learn to draw first?
Which atom will never form a double bond?
Which atom will never form a double bond? The double bond rule states that chemical elements with a principal quantum number greater than 2 for their valence electrons (period 3 elements and lower) tend not to form multiple bonds (e.g. double bonds and triple bonds) with themselves or with other elements. Can carbon form a […]