Which of the following metric prefixes corresponds to 10^6?

For January through April 2020, at the height of the global coronavirus pandemic, it is estimated that global emissions of carbon dioxide (CO₂) decreased by 940 million metric tons (1 metric ) compared to the same period in 2019. a. Express this mass of CO₂ in grams without exponential notation, using an appropriate metric prefix.

What are the conversion factors needed to convert the following? c. km to ft

Determine the appropriate conversion factors for the following: d. ft³ to L

Determine the appropriate conversion factors for the following: c. mi to km