Question

The water in a location is tested regularly to identify contaminants. The nitrate levels in the water from 1994 to 1997 are shown in the table below.

Year 1994 - Nitrate level in water (in mg/L) 8.5

Year 1995 - Nitrate level in water (in mg/L) 12.2

Year 1996 - Nitrate level in water (in mg/L) 9.7

Year 1997 - Nitrate level in water (in mg/L) 7.3

Answer 1

Which of these conclusions is most likely correct about the people in the location?
In 1997, they reduced their water consumption.

In 1996, they planted more trees to curb water pollution.

In 1994, they used only bottled water for drinking purpose.

In 1995, they complained about foul odor and taste in water.

Answer 2

It is whether B or D ^-^

Answer 3

anyone help? T_T