When you breath chalk when you have your Allergies you start to cough and your eyes get filled with water ( watery).
If the chalk is dry, nothing.
The chalk will be ground into chalk dust by the pebbles.
Yes, you do - so maybe hold your breath while you're doing it ;)
chalk powder floats.since it's density is less compared to oil"s.
it crumbles
Cat allergies can cause all sorts of symptoms, from sneezing to hives and rashes. They can also cause shortness of breath, which I'm assuming is what you mean. This is something to talk to your doctor about because untreated respiratory allergies can trigger asthma.
Nothing will happen when you add water to chalk, because chalk does not dissolve in water. However, if you are drawing with chalk, as the water evaporates, it will allow the chalk to spread and create more fun.
If you mix chalk with club soda, it is most likely that it will explode!
They will have fever.
Yes. You breathe in dust, pollen and sometimes you get Allergies from them but you can definitely smell them.
carbon dioxide is released into the air.
you first breath in and then you breath out