Which of the following is an example for bad reflector of sound? Bad reflectors of sound – Thick curtains, thick carpets. Is asbestos a good reflector of sound? Asbestos insulations are very diversified. Asbestos applied in this manner provides for thermal insulation, fire protection, sound insulation, resistance to corrosion when metal surfaces are covered, and […]
Why is energy released in an exothermic reaction?
Why is energy released in an exothermic reaction? Exothermic Reactions In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants. What is exothermic reaction explain with example? An exothermic reaction is defined as a reaction that releases heat and has a net […]
What is the greatest cause of biodiversity loss?
What is the greatest cause of biodiversity loss? Reason for Loss of Biodiversity Habitat destruction. Habitat destruction is a major cause of biodiversity loss. Invasive Species. Over-exploitation of Species. Global Warming and Climate Change. Pollution. Human Overpopulation. Natural Calamities. Genetic Pollution. What are some impacts of biodiversity loss? Biodiversity loss can have significant direct human […]
Which main metal is present in Haemoglobin?
Which main metal is present in Haemoglobin? heme group What is the common feature between chlorophyll and Haemoglobin? chlorophyll and haemoglobin are pigments. chlorophyll gives green colour to the leaves and haemoglobin gives red colour to the blood. both haemoglobin and chlorophyll have a porphyrin structure that binds with a central metal ion to form […]
How do you classify matter?
How do you classify matter? Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition. […]
Which country is most earthquake prone?
Which country is most earthquake prone? Japan What is the safest country in the world 2020? Switzerland named the safest country for travellers in 2020, followed by Singapore Switzerland. Singapore. Norway. Luxembourg. Cyprus. Iceland. Denmark. Portugal. Is Singapore less prone to natural disasters? Singapore is not prone to natural disasters, thanks to its geographical position. […]
How do you calculate weight by age?
Whats the worst neighborhood in NYC?
Whats the worst neighborhood in NYC? Worst Crime Neighborhoods in NYC: Midtown. Though not highly populated, center of Manhattan is constantly packed with tourists, office and general workers and wanderers. Meatpacking District and Greenwich Village. Hunts Point. Brooklyn. Is Queens New York ghetto? While there is poverty, gangs, crime and some parts of Queens that […]
What happens to a balloon when air pressure decreases?
What happens to a balloon when air pressure decreases? The ideal gas law equation tells us that the pressure of the air in the balloon will increase. As the balloon volume decreases, pressure inside the balloon increases. It eventually is able to balance the outside air pressure. You end up with a balloon filled with […]
What are five interesting facts about helium?
What are five interesting facts about helium? 10 Helium Facts The atomic number of helium is 2, meaning each atom of helium has two protons. Helium has the lowest melting point and boiling point of the elements, so it only exists as a gas, except under extreme conditions. Helium is the second-lightest element. What’s a […]