Which statements are real-world applications of life science? Check all that apply. Farmers study plant growth and are able to grow more fruits and vegetables.
Doctors can determine what is wrong with a patient and prescribe the right medicine.
Scientists study weather patterns to provide information about future weather
Scientists can track animal movements and predict where they might be feeding
Dentists recommend you brush and floss daily because bacteria cause tooth decay

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o