1) temperature change
2)odor or smell change
Hope this helps
It would be 1 or 2 because if the number is higher than 5 you need to round up , if its lower than 5 you need to round down.
Answer:
Jack Beacuse...
Explanation:
the soil has water in it so it will be more than one matterial
Caffeine has the following percent composition: carbon 49.48%, hydrogen 5.19%, oxygen 16.48% and nitrogen 28.85%. Its molecular weight is 194.19 g/mol.
