This is for Earth Space Science

One of the major events that contributed to Snowball Earth was the series of large volcanic eruptions that occurred 700 million years ago in what is now Canada. These eruptions caused ⎽⎽⎽(blank)⎽⎽⎽⎽⎽ particles to get trapped in the atmosphere. The particles blocked incoming solar radiation, which had a strong ⎽⎽⎽(blank)⎽⎽⎽ effect on the planet.
1. carbon dioxide; warming
2. sulfur gas; warming
3. sulfur gas; cooling
4. carbon dioxide; cooling