Which is true about comets?

The orbits of comets do not take them past the Jovian planets.

The Oort cloud of comets is found between Neptune and Pluto.

All comets have long tails made of vaporizing gases.

Comets are held together by frozen gases.

Why do we need time zones?

Which would provide evidence of tectonic plate movement over time? A) Fossils of tropical fish found in a cold climate area B) Fossils of tropical fish found at the bottom of the ocean C) Fossils of tropical plants found near the equator D) fossils

6. What effect will the concentrated energy from wave erosion eventually have on the shape of the coastline?

How does the Sun's gravity influence tides?

Since much of our knowledge of Earth's interior is inferred from the behavior of seismic waves and not actual samples, what are some of the assumptions that are made in order for our models to be correct?

Why is Dubai creating underwater resorts and reclaimed islands? Dubai has an incredible amount of money to spend on building projects. Dubai's population is growing at a very fast pace, some say too fast.

Where was the maya civilization located

The widespread presence of banana plantations in central america region has resulted in increased standard of living

Which of these has been the result of human activity? a) glaciers melt more b) volcanoes erupt more landslides happen more d) earthquakes happen more

Which types of stars have extremely intense gravitational and magnetic fields?