Famous Eruptions & Pangaea

Question 1

What were the main effects of the 1815 eruption of Mount Tambora in Indonesia?

Accepted Answer

It sent huge clouds of ash and sulfur gases high into the sky, causing a global “volcanic winter” that made 1816 a very cold year with crop failures around the world.

Answer

It triggered strong earthquakes that destroyed far‑away cities, but it did not change the weather.

Answer

It released mostly water vapor, which warmed the planet and made the next year unusually hot.

Answer

It only produced lava flows that stayed near the volcano, so the surrounding islands were the only places affected.

Question 2

When the volcano on the fictional island of Kiva erupted, it sent a huge cloud of ash and sulfur gases high into the atmosphere. Which statement best explains how that cloud caused a short‑term drop in world temperatures?

Accepted Answer

The ash and sulfur gases rose into the upper atmosphere, turned into tiny particles that reflected sunlight back into space, so less heat reached the Earth’s surface and the planet cooled.

Answer

The ash and gases caused extra rain everywhere, and the cooling effect of the rain made the global temperature drop.

Answer

The ash settled on the ocean surface, making the water darker; the darker water absorbed more sunlight, which warmed the oceans and caused the rest of the world to become cooler.

Answer

The sulfur gases acted like a blanket, trapping more heat close to Earth, but the ash blocked the sun’s rays, so the two effects cancelled out and the temperature stayed the same.

Question 3

Scientists discovered the same ancient fern fossil in both Antarctica and India. Which statement best explains how the same fossil can be found on these continents today?

Accepted Answer

Antarctica and India were once joined together in a single supercontinent that later split apart.

Answer

The fern could grow in any climate, so it appeared on every continent at the same time.

Answer

People in ancient times carried the fossils to different continents as souvenirs.

Answer

The fern’s tiny spores floated across the oceans on drifting mats of plant material.

Try three questions

What were the main effects of the 1815 eruption of Mount Tambora in Indonesia?

When the volcano on the fictional island of Kiva erupted, it sent a huge cloud of ash and sulfur gases high into the atmosphere. Which statement best explains how that cloud caused a short‑term drop in world temperatures?

Scientists discovered the same ancient fern fossil in both Antarctica and India. Which statement best explains how the same fossil can be found on these continents today?

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