4,000 species of this live on reefs.
Grasslands cover ___% of Earth's surface area?
25%
The deepest point in the ocean.
What is the Mariana Trench?
The world's longest river.
What is the Nile River?
These mammals nurse their young with milk.
T or F?: Corals are plants.
False
Two basic types of grassland
What are temperate and tropical grasslands?
This % of Earth is covered by the ocean.
~70%
The world's highest waterfall is on this continent.
T/F: All mammals have four-chambered hearts.
True
When water is too warm, corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white.
What is coral bleaching?
This % of American prairies remain.
2%
The most remote point in the ocean.
What is Point Nemo?
True
A mammal of an order whose members are born incompletely developed and are typically carried and suckled in a pouch on the mother's belly.
By 2100, optimal coral reef coral reef habitat does NOT include this location, which is the most famous place to spot coral.
The time life on Earth was restricted to the ocean.
What is 3 billion years?
Considered the Holy River.
What is The River Ganga?
The biggest mammal.
What is the blue whale?
Corals eat these to survive.
What are plankton?
The most famous inhabitant of American prairies.
What is the bald eagle?
This % of the ocean floor has been mapped.
The river that birthed the Indus Valley civilization.
What is the Indus River?
The group of mammals which platypus belong to.
What are monotremes?