Sunlight, when viewed through a prism or a diffraction grating, shows all of the colors of visible light. this is an example of a
(a) bright line spectrum
(b) continuous spectrum
(c) infrared spectrum
(d) visible spectrum
(e) ultraviolet spectrum

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering