Which piece of evidence from the article BEST proves that Earth Day is a significant event to this day? A
Today, Earth Day is celebrated around the world.
B
Sometimes it even extends into Earth Week, a full seven days of events focused on environmental awareness.
C
Since 1970, Earth Day celebrations have grown. In 1990, Earth Day went global.
D
Earth Day is the largest non-religious event in the world with over 1 billion participants.