What are the 3 ways humans work to reduce flooding? Some methods of flood control have been practiced since ancient times. These methods include planting vegetation to retain extra water, terracing hillsides to slow flow downhill, and the construction of floodways (man-made channels to divert floodwater). What is the problem with levees? In addition, by […]
What absorbs sound the best?
What absorbs sound the best? In general, soft, pliable, or porous materials (like cloths) serve as good acoustic insulators – absorbing most sound, whereas dense, hard, impenetrable materials (such as metals) reflect most. How do I block traffic noise in my bedroom? Hang heavy curtains or drapes on windows (you could even try hanging heavy […]
What are ionic compounds called?
What are ionic compounds called? Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions. For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the […]
How do maglev trains start moving?
How do maglev trains start moving? Maglev trains work on the principle of magnetic repulsion between the cars and the track. To begin motion, the train moves forward slowly on these wheels, allowing the magnets beneath the train to interact with those of the guideway. How does maglev trains run without wheels? This junkyard crane […]
Why is radiation the fastest mode of heat transfer?
Why is radiation the fastest mode of heat transfer? The energy transferred by radiation propagates with the speed of light . In radiation , heat is transferred by electromagnetic waves , which have the fastest speed , so it is the fastest mode of heat transmission . What kind of heat transfer happens when the […]
How much heat does it take to boil water?
How much heat does it take to boil water? The boiling point of water is typically considered to be 100 °C or 212 °F. Pressure and a change in the composition of the liquid may alter the boiling point of the liquid. High elevation cooking generally takes longer since boiling point is a function of […]
What are the 2 classifications of bacteria?
What are the 2 classifications of bacteria? There are broadly speaking two different types of cell wall in bacteria, that classify bacteria into Gram-positive bacteria and Gram-negative bacteria. The names originate from the reaction of cells to the Gram stain, a long-standing test for the classification of bacterial species. What types of bacteria are rod […]
How many hours exactly is a day?
Should an immersion heater be left on all the time?
How can earthquake be prevented?
How can earthquake be prevented? We cannot prevent natural earthquakes from occurring but we can significantly mitigate their effects by identifying hazards, building safer structures, and providing education on earthquake safety. By preparing for natural earthquakes we can also reduce the risk from human induced earthquakes. What is the longest earthquake? Valdivia Earthquake Is a […]