1. Students in another science class had a sealed plastic bag full to decide whether the air in the bag had mass. Here are the answers that four,
students wrote:
a. Air does not have mass because the bag does not feel heavy.
b. Air does not have mass because the air keeps moving around.
c. Since I cannot actually measure it, air cannot have mass,
d. Air has mass, but it is probably very, very small.
Which of these answers do you agree with? Explain your ideas. If you do not agree
with any of the answers, what answer would you give instead?

In meteorology, a  cloud  is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of  clouds, which is undertaken in the  cloud  physics branch of meteorology.cirrus clouds  usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds  have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds  often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.

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C. chemical changeshope i : )

The answer to your q the total mass is 73