They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).
answered: Guest
If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .
answered: Guest
they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.
answered: Guest
Density= mass/volume so 5.1 divided by 4.7 is 5.1 / 4.7 =1.08510638298round to the correct number of sig figs