Review the map below. Approximately what percentage of land does productive forest cover in Canada?

The image presents information about bioenergy in North America, including Mexico, Canada, Greenland and the United States. The key indicates the following: areas with more than 50% productive forest area (in relation to the total area of the country) are indicated by the color pink. The areas with between 30 and 50% productive forest area are indicated by the color purple. The areas with between 20 and 30% productive forest area are indicated by the color dark purple. The areas with between 15 and 20% productive forest area are indicated by the color navy blue. Less than 15 % productive forest areas are indicated by the color dark blue. Areas with no data available are indicated by the color black. On the map, the areas of Mexico, the U. S., Canada, and Alaska are colored purple. Greenland is colored black.

No data is available
Between 20 and 30 percent
More than 50 percent
Less than 15 percent