Add the protons and neutrons to find atomic mass 5+4=9. the atomic mass is 9
Answer:A) Aquarist- Tony spends his time at work preparing feed and cleaning the tanks of the marine creatures on display. B) Marine educationist-Clayton works in a firm advising oil exploration companies about the impact of their activities.
C) Environmental consultant-Glenda runs a campaign to stop sand mining in the estuary that lies near her town.
D) Environmental lobbyist-Hazel works in a tour operating company interacting with and answering questions from tourists about the coral reefs in the Florida Keys.
Explanation:
Muscles allow you to move your limbs.
A model can help scientist to study the things that are difficult to understand that can not be observed directly. It allows scientists to examine and visualize that might not be accessible physically. All the natural science is based on the models, these are suggested and tested by observations.
