Choose all the answers that apply. Check the statements that are true.

A hypothesis must be proven true in order for an experiment to be valid.
Electrons and protons are examples of cycles.
A valid experiment must have results that can be repeated.
Observations are the final stage of an experiment.
Science is based on fact.

Glutamic acid: hydrophilic or hydrophobic? positive, negative, or neutral? valine: hydrophilic or hydrophobic? positive, negative, or neutral?

Nh3 +02-no + h20 is unbalanced what is the balanced equation

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.