Review: Galaxies, Universe, Weather, Climate, Ocean Currrents

Front

What is a dry climate?

Back

A climate characterized by little precipitation, which can be either hot or cold.

Front

What two elements mostly make up stars?

Back

Hydrogen and Helium.

Front

What does the big bang theory state about the universe?

Back

The universe began as an explosion and is still expanding.

Front

What is redshift in the context of galaxies?

Back

Redshift refers to the phenomenon where the light from distant galaxies is shifted towards the red end of the spectrum, indicating they are moving away from us.

Front

What are galaxies composed of?

Back

Galaxies are composed of stars, gas, dust, and dark matter.

Front

What type of galaxy is characterized by a lack of defined structure?

Back

Irregular galaxy.

Front

What is the difference between weather and climate?

Back

Weather refers to short-term atmospheric conditions, while climate refers to long-term patterns of temperature and precipitation.

Front

What are ocean currents?

Back

Ocean currents are large-scale movements of water within the world's oceans, driven by factors such as wind, temperature, and salinity.

Front

What is the role of dark matter in galaxies?

Back

Dark matter is an unseen substance that exerts gravitational forces, helping to hold galaxies together.

Front

What is a spiral galaxy?

Back

A type of galaxy characterized by its spiral arms that wind outward from the center.