The correct answer is feet.
Step-by-step explanation:
A oak tree can be up to 100 feet, so obviously it would not be inches or milometers as they're too small of measurements. Kilometers would be way to long, so feet is the only possible choice.
D) feet
A tree 1.5 x 10^3 is 1500 centimeters. That's about 300 inches, which would better be measured in feet.
Option D is the correct answer.
Explanation:
Height of grass = 5.08 x 10⁻⁵miles
Feet
1 mile = 5280 feet
Height of grass = 5.08 x 10⁻⁵x 5280 = 0.268 ft
Kilometers:
1 mile = 1.6 km
Height of grass = 5.08 x 10⁻⁵x 1.6 = 8.128 x 10⁻⁵ km
Meters:
1 mile = 1600 m
Height of grass = 5.08 x 10⁻⁵x 1600 = 0.0812 m
Inches:
1 mile = 63360 inches
Height of grass = 5.08 x 10⁻⁵x 63360 = 3.22 inches
From seeing the result it can be understood that inch is the best unit to measure the height of grass.
Option D is the correct answer.