History of Earth & Oceans Review

Front

Which ocean has very little marine life?

Back

Indian Ocean has very little marine life due to its warmer temperatures and lower nutrient levels.

Front

What percentage of Earth's surface is covered by water?

Back

70% of Earth's surface is covered by water, which includes oceans, seas, lakes, and rivers.

Front

What method do we use to determine the age of Earth and other rocks?

Back

Radioactive decay is used to determine the age of Earth and other rocks through the analysis of isotopes.

Front

Which ocean is the warmest?

Back

The Indian Ocean is considered the warmest ocean.

Front

Which ocean is labeled #2?

Back

The Atlantic Ocean is labeled as #2 on many world maps.

Front

What is the largest ocean on Earth?

Back

The Pacific Ocean is the largest ocean on Earth, covering more area than all the landmasses combined.

Front

What is the primary cause of ocean currents?

Back

Ocean currents are primarily caused by wind patterns, the Earth's rotation, and differences in water temperature and salinity.

Front

What is the significance of the ocean in regulating Earth's climate?

Back

Oceans play a crucial role in regulating Earth's climate by absorbing carbon dioxide and heat, influencing weather patterns.

Front

What is the process of ocean acidification?

Back

Ocean acidification is the decrease in pH levels of the ocean due to increased carbon dioxide absorption, affecting marine life.

Front

What are the main layers of the Earth?

Back

The main layers of the Earth are the crust, mantle, outer core, and inner core.