*59. round off each of the answers correctly.
a. 8.7 g + 15.43 g + 19 g = 43.13 g
b. 4.32 cm x 1.7 cm = 7.344 cm
c. 853.2 l – 627.443 l = 225.757 l
d. 38.742 m2 = 0.421 m = 92.023 75 m
e. 5.40 m x 3.21 m x 1.871 m = 32.431 914 m3
f. 5.47 m3 + 11 m3 + 87.300 m3 = 103.770 m

the role of the microscope world in creating new materials .

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.