What is chemistry?

the study of living things and how they change

the study of matter and how it changes

the study of what living things are made of

the study of matter and how it moves

What is the problem in this article? what solution does the article propose?

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?