Fossils-8

How many years ago was the last huge glacier?

18,000 Years ago

What is known to cause the extinction of dinosaurs

A meteorite

The events of 1815 were caused by

A volcanic eruption

The mass extinction at the end of the cretacious period was caused by ------.

An astroid in mexico

A tsunami is caused by

An earthquake on the ocean floor

Which event caused craters

Asteroids

What event is most likely to prevent sunlight

Astroid impact

Volcanoes

Cause multiple problems in iceland

Why does earth not look like the moon?

earths surface is changing constantly.

How do people minimize risk?

hazard mitigation

Less developed countries are more vulnerable to natural disasters because of-----

poor infrastructure

What will have the greatest event on sea levels?

the end of an ice age

Although scientific theories vary, it is believed that ------- caused the Permian extinction.

Glaciers

What formed the great lakes

Glaciers

What doesnt contribute to coral reef changes

Hole in ozone

Changes in the earth are mostly caused by

Ice ages

Plate tectonics cannot cause

Ice ages

What would NOT be a consequence of global warming

Increase in biodiversity

If particles are in the atmosphere radiation reducesld and some lifeforms are extinct what happened

Volcanic eruptions

What two events cause mass extinction

Volcanic eruptions and asteroids

Most islands in the southwest was caused by

Volcanoes

The hawaiian islands were caused by

Volcanoes

Why is there no evidence of older volcanoes?

Earths changing surface

During ice ages does the sea level rise or fall and why?

Fall because ice freezes out of the water.

During the last ice age the sea level was -----than it was today.

Lower