Answer:
gas in the atmosphere ......
Table 3
A linear graph is one where there is a steady change in the value on the y-axis with a steady change in the value on the x-axis. The first table will produce a positive sloped straight line that has an increase of 5 in the value of distance with each increment in the time value.
Table 2 will produce a graph where there is a decrease of 2 in the value of distance with an increase in the value of time.
Table 4 will produce a graph where the line is horizontal; the y-value does not change with time.
Table 3 has a graph which has to move up and down to accommodate the decreasing and increasing values, so it will be non-linear.
In order to create a hydroelectric power plant, you need water, hence the prefix hydro-. Most times, people use dams to block the water, which in a way stores it. When you need to produce electricity, you release some of the water which flows through a turbine making it spin, which then activates a generator to produce electricity.