Show:
Feel the Earth Move!
The Nitty & the Gritty
Marine Pollution
Ocean's Carbon Cycle
Living on the Seafloor
100
The present polarity of Earth’s magnetic field:

x) Normal

y) Reversed

z) Bipolar

What is normal?
100
Method of sediment collection that achieves the deepest penetration:

x) rotary drilling

y) gravity coring

z) piston coring

rotary drilling
100
The chemical that causes Minamata disease:

x) mercury

y) DDT

z) PCBs

What is mercury
100
Scientists are most divided about this component of climate change:

x) natural origin

y) future impact

z) human origin

What is future impact
100
The most significant stress for organisms in the high tide zone of a rocky shore: x) desiccation

y) predators

z) wave energy

What is desiccation
200
The solid layer of the Earth that moves and makes up the plates is the:

x) asthenosphere

y) lithosphere

z) mesosphere

What is the lithosphere?
200
The type of sediment that is not from Earth:

x) hydrogenous

y) cosmogenous

z) lithogenous

What is cosmogenous
200
The increase of toxic chemicals with increasing levels in the food web:

x) biomagnification

y) bioconcentration

z) bioaccumulation

biomagnification
200
This gas contributes the most to atmospheric warming:

x) carbon dioxide

y) water vapor

z) methane

What is water vapor
200
Why do corals need zooxanthellae?:

x) for toxic chemical regulation

y) for food

z) for protection

What is for food
300
The study of Earth’s magnetic field in the geologic past:

x) paleomagnetism

y) paleogeography

z) magnetodynamics

What is paleomagnetism
300
An abyssal clay with a brownish-red color is rich in this element:

x) oxygen

y) iron

z) calcium carbonate

What is iron?
300
Explains bioremediation, as related to oil spills:

x) the application of a dispersant to an oil spill

y) the use of bacteria and fungi to break down oil from a spill

z) passing water through scrubbers that remove the oil

the use of bacteria and fungi to break down oil from a spill
300
Explains why continental margins are more biologically productive than the open ocean:

x) More available nutrients along the continental margins.

y) Sunlight penetration is deeper at the continental margins.

z) There are fewer species along the continental margin

What is More available nutrients along the continental margins.
300
Explains why there is greater coral diversity in the Pacific Ocean than in the Atlantic Ocean:

x) because the Pacific Ocean is larger

y) because the Atlantic Ocean is too cold

z) because of plate tectonics

What is because of plate tectonics
400
Features associated with an oceanic–oceanic convergent boundary?

x) rift valley

y) volcanic island arc

z) hotspot volcano

What is a volcanic island arc?
400
A siliceous ooze is dominated by this microscopic algae:

x) dinoflagellate

y) diatom

z) coccolithophore

What is a diatom?
400
Storm drain runoff, and any trash that flows with it:

x) chemical pollution

y) non-point source pollution

z) sewage sludge

what is non-point source pollution
400
An example of this is ice bubbles preserved in glaciers:

x) ancient temperatures

y) proxy data

z) Milankovitch cycle

What is proxy data
400
Explains why high nutrient concentrations in the water are harmful for coral growth:

x) because the nutrients are not in a usable form for the zooxanthellae

y) because turbidity increases due to planktonic algal growth

z) because the nutrients are toxic pollutants to coral

What is because turbidity increases due to planktonic algal growth
500
Explains why the oldest ocean floor is only 180 million years old:

x) Because older crust is covered up by younger sediment deposited in the ocean.

y) Because all of the older oceanic crust has risen above sea level and is now part of the continents.

z) Because the oldest crust is destroyed at subduction zones.

What is Because the oldest crust is destroyed at subduction zones.
500
Area of the ocean floor with the thickest sediment deposits:

x) abyssal plain

y) continental rise

z) continental shelf

What is the continental shelf?
500
The worst issue associated with plastics in the ocean.

x) entanglement of animals

y) accumulation of toxic chemicals that are then ingested

z) persistence in the environment

What is accumulation of toxic chemicals that are then ingested?
500
This is how the amount of carbon dioxide entering the ocean behaves as ocean temperatures increase:

x) decrease

y) increase

z) stay the same

What is decrease?
500
Explains why the majority of benthic biomass found on the continental shelf:

x) because biomass is correlated with primary productivity

y) because the majority of sediment is on the continental shelf

z) because all benthic organisms rely on ocean currents

What is because biomass is correlated with primary productivity