An increase in an object's mass is typically accompanied by an increase
in weight. Which of the following best
explains this increase?
A. As mass increases, more atoms result in increased
weight.
B. Anytime weight increases, an object's volume
increases as well.
C. An increase in mass usually means less gravitational
pull.
D. Weight and mass are the same thing.

A

Explanation:

Mass is the measure of the amount of matter in an object. If mass is increasing, the amount of matter is increasing.

Weight is the force of gravity acting on the amount of mass. An increase in mass causes an increase in weight, as weight is gravity times mass.

The correct answer is 15%.

Explanation:

In a bag of fertilizer, the letters NPK is written, which signifies nitrogen content, phosphorus content, and potassium content in sequential order. These are the three nutrients that form a complete fertilizer. The content of the nutrients is denoted by numbers, which is followed by a percentage symbol as these numbers signify the percentage of the nutrient in the formation of the fertilizer. Thus, 30-15-10 shows that the given fertilizer comprises 30 percent nitrogen, 15 percent phosphorus, and 10 percent potassium.