NASA Sees 30 Years of Yellowstone Recovery from 1988 Fires

The video discusses the signs of a healthy forest, such as its green color, and the impact of fires, which leave dark reddish-brown scars. Over time, these scars recover, starting with grasses, followed by shrubs, and eventually saplings and short trees. However, even years after a fire, the forest may not fully return to its original state.

What is a sign of a tall, healthy forest?

• Bare branches

• Yellow leaves

• Green color

• Dark reddish-brown color

What is the immediate visible effect on a forest after a fire?

• Dark reddish-brown fire scar

• Lush green grass

• Tall trees

• New saplings

What is the first type of vegetation to grow back on a fire scar?

• Tall trees

• Grasses

• Saplings

• Shrubs

Which type of vegetation appears after grasses during forest recovery?

• Moss

• Shrubs

• Saplings

• Tall trees

What is observed about the forest years after a fire?

• It does not fully recover

• It remains unchanged

• It becomes a desert

• It returns to its full potential