TEST 6 Flashcards
What are the upper layers of ground stripped away by surface mining?
Overburden
What is the narrow zone of active volcanoes that encircle the Pacific Basin?
Ring of Fire
What type of weathering involves the breaking or peeling away of rock into layers?
Exfoliation
Man is as classified as
Homo sapiens
What is the land that borders a river and is covered by water in flood time?
Floodplain
What is a volcano made of volcanic ash and rock fragments held together loosely?
Cinder-cone volcano
What type of mountain formed when rocks on one side of a fault were forced upward and the rocks on the other side were forced downward?
Fault-block
What are glaciers that extend into the ocean without breaking?
Ice shelves
What is the amount of matter in an object?
Mass
What is an alloy of iron and carbon?
Steel
What is the resistance of a smooth surface of a mineral to being scratched?
Hardness
What is the sudden appearance of life in the fossil record called?
Cambrian Explosion
What plant food element promotes the ripening of fruits?
Phosphorus
What are the crystalline substances found naturally in the earth?
Minerals
What is lava that hardens in rough, jagged rocks with a crumbly or blocky layer called?
aa Lava
What is the largest group of minerals which compose over 90% or the earth’s crust?
Silicates
Which australopithecine was known as upright man?
Homo Erectus
What is the upper surface of ground water?
Water Table
What is the fan shaped deposit of sediments at the mouth of a river called?
Delta
What deep sea fish living fossil was once thought to be the ancestor of the first amphibians?
Coelacanth
Sandy, gently sloping underwater plain near a continent?
Continental Shelf
A huge level region of the deep ocean floor
Abyssal Plain
Underwater mountain Range
Mid-oceanic Ridge
A pool of shallow salty water at the center of an atoll
Lagoon
One of the deep depressions in the earth’s surface where the oceans are contained.
Ocean Basin
Large fissure in the continental shelf
Submarine Canyon
Underwater mountain
Seamount
One of the huge muddy valleys that cut through portions of the abyssal plain
Trench
Beginning marked by shelf break
Continental Slope
Rythymic back and forth motions of water that transfer energy are called
Waves
78% of the salt in the ocean is
Sodium Chloride
Crystals are characterized by many flat surfaces called
Faces