Fluorescence
when a substance absorbs external radiation in any form and gives of a glow or luminescence it is considered as Fluorescence.
Most clouds are white. That's because water and ice particles that make up a cloud have just the right amount and sizes to scatter light in all possible wavelengths. When light of practically all wavelengths combine, the result is white light.
Expansion
Explanation:
Expansion is the change is size of a body with increasing temperature and tension.
Bridges are built of iron. Iron thermally expands in the presence of increased temperature during the day. The length of the iron will increase by simple fractions. At night, when temperature drops, the bar returns back to its initial position.
- The allowance for expansion of the metal is made in order to prevent tension within the structure.
- Not doing this will cause the material to break since there is no free space for the bar to change shape.
Learn more:
Expansion in gases brainly.com/question/9979757
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Answer:
yes beacause our earth was rotating on its axix but they dont feel anybody because of a gravity that sorounded on earth
Answer: The number of moles of laundry detergent used is, 2.83 moles.
Explanation : Given,
Mass of 
= 300 g
Molar mass of = 106 g/mol
Formula used :
Now put all the given values in this formula, we get:
Therefore, the number of moles of laundry detergent used is, 2.83 moles.
