The United States emitted 19.5 million t of nitrogen oxides (No) into the atmosphere in 1987. One metric to (1t) equals 1,000 kg. How many kilograms of NO were emitted to the atmosphere in the United States during 1987?
19.5 million x 1000 = ?
To find the answer, we need to convert the 19.5 million tons of nitrogen oxides (NO) into kilograms.
We know that 1 metric ton (1t) is equal to 1,000 kilograms (kg). Therefore, we can multiply the number of tons by 1,000 to convert them into kilograms.
19.5 million tons * 1,000 kg/ton = 19,500,000,000 kg
Therefore, during 1987, the United States emitted 19,500,000,000 kilograms of nitrogen oxides into the atmosphere.