Earth the Biography: Oceans

How many billions of years have the oceans been on Earth?

• 1
• 2
• 3
• 4

What happens to the current of the Amazon River when the Moon and Sun's effects combine

• It flows normal.
• It flows in reverse.

It is believed only 50% of the Earth's water was from volcanic activity?  Where did the rest come from?

• collisions with comets
• a collision with another planet
• It was released by micro-organisms.
• There is no current hypothesis.

East Africa is experiencing what type of plate boundary interaction (convergent, divergent or transform)?

• convergent
• divergent
• transform

How long ago did the Straight of Gibralter close up last?

• 2 millions years ago
• 4 millions years ago
• 6 millions years ago
• 8 millions years ago

How do phytoplankton help all creatures breathe?

• produce oxygen through the process of photosynthesis
• remove carbon dioxide from the atmosphere
• absorb harmful radiation from the Sun
• first link in the food web

How was the vastness of ocean currents illustrated through an accident?

• A container of ink spilled into the ocean dyeing the ocean currents.
• A container of rubber ducks and other bath toys spilled into the ocean showing the ocean currents.

How much did the water temperature change in 1998 to almost destroy the golden jellyfish population?

• 1°
• 2°
• 3°
• 4°