Wheel and Axle Give reasons for the following.
a. Handles of metal cutters are made long.
b. String roller is an example of wheel and axle.
c. Winding roads are made on slopes.
d. A shovel is the third class lever.
e. Wedge is called a simple machine.
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When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew