mercury is sensitive to heat and expands even at light increase in temperature
alcohol cannot be used to measure high temperature because it will change to gas easily
a) Recycling means treating things that have already been used so that they can be used again
b)As making new things from the recycled ones take less money,less energy and less of the Earth's resources also it reduces pollution.
d) Composting is a cheap and useful process of speeding up decay
1-In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature
2-Throughout the universe, it's natural for energy to flow from one place to another. And unless people interfere, thermal energy — or heat — naturally flows in one direction only: from hot toward cold.
3-The thermal conductivity of brass is high i.e., brass is a good conductor of heat. So, when a brass tumbler is touched, heat quickly flows from human body to tumbler. Consequently, the tumbler appears colder, on the other hand wood is a bad conductor.
4-Average speed = Total Distance/total time taken
=> speed = 280/4
=> avg speed = 70km/hr
When speed is 40 kmph
Distance traveled by car =40×9
When speed is 60 kmph
Time taken to complete the journey =
mercury thermometer is preferred over alcohol thermometer because mercury thermometer does not evaporate easily.it is smaller in size
too long,are u expecting me to solve your assignment,kid do it on your own please
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
Hope it helps
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mercury primarily causes health effects when it is breathed as a vapor where it can be absorbed through the lungs like tremours
at home , Place all mercury-containing products or containers of mercury inside a larger container with a tight fitting lid. Place kitty litter or oil-absorbent matter around the product to protect it from breaking or sudden shocks. Clearly label storage container as "Mercury - DO NOT OPEN."
There are many other thermometers used instead of mercury thermometers like-
Hope this helps!