What is combustion answer? Answer: Combustion is a process of burning a substance in the presence of air or oxygen, as a result of which heat and light are produced. What is an example of complete combustion? An example is burning of paper. It leaves behind ash (a form of soot) as a byproduct. In […]
What is the most popular bias?
What is the most popular bias? The most common cognitive biases The cognitive biases are the mistakes that the human mind makes. Negative bias: tendency to give more attention and weight to negative news than to the positive ones. Bandwagon effect: tendency to believe/do something because many people believe/do it. What causes bias? The common […]
How many warning signs does a railroad crossing have?
How many warning signs does a railroad crossing have? At public highway-rail crossings, there are two basic types of warnings: Passive signs. Active warning signs. How far in front of a railroad track should railroad warning signs be placed? 100 feet What does it indicate if an edge line angles in toward the center of […]
Does R134a contain chlorine?
Does R134a contain chlorine? R134a refrigerant is an alternative that contains no chlorine and hence no ozone depletion potential. It’s a greenhouse gas, though, and it doesn’t work as well as R22. What does the A stand for in R134a? R134a.. Here “a” is used to denote that it is an isomer. R134 has NBP […]
Can you hear explosions in space?
Can you hear explosions in space? Sound needs a medium to travel (such as air), but space generally doesn’t have it. Therefore, sound can’t really propagate in space. So you can’t hear an explosion or any other sound in space. There is no atmosphere to transmit sound in space, so no. Does your head really […]
How is desertification being managed?
How is desertification being managed? Desertification can be reduced by adopting the following strategies: Planting more trees – the roots of trees hold the soil together and help to reduce soil erosion from wind and rain. Water management – water can be stored in earth dams in the wet season and used to irrigate crops […]
What are the two meanings of fault?
What are the two meanings of fault? (Entry 1 of 2) 1a : weakness, failing especially : a moral weakness less serious than a vice He loves her despite her many faults. b : a physical or intellectual imperfection or impairment : defect a theory with some serious faults. How do you identify a normal […]
What is a node on a standing wave?
What is a node on a standing wave? All standing wave patterns consist of nodes and antinodes. The nodes are points of no displacement caused by the destructive interference of the two waves. The antinodes result from the constructive interference of the two waves and thus undergo maximum displacement from the rest position. What is […]