Oceans

Ocean systems are comprised of interacting and interdependent elements that are subject to change in response to inputs and outflows of what 2 things:

• Energy and matter

• Salt and water

• Heat and light

• Wind and waves

Upwellings help enrich biological activity near the surface by:

• bringing nutrient-rich water from the deep ocean to the surface

• increasing the temperature of surface waters

• reducing the amount of sunlight reaching the surface

• removing carbon dioxide from the atmosphere

The ( Tides) periodic rise and fall of water levels in the ocean is caused by:

• Wind patterns

• gravitational pull of the moon and sun

• Ocean currents

• Earthquakes

What is absorbed by the oceans:

• Oxygen

• Carbon dioxide

• Nitrogen

• Helium

As atmospheric ​ (a)   increases, the ocean absorbs more CO2, leading to a decrease in seawater pH (​ (b)   ) and a reduction in the availability of ​ (c)   ions. Organisms do not have the carbonate that build ​ (d)   .

• carbon dioxide
• oceanic acidification
• carbonate
• shells and skeletons

As atmospheric carbon dioxide increases, the ocean absorbs more CO2, leading to:

• ocean acidification

• ocean warming

• increased salinity

• decreased oxygen levels

The reduction in the availability of carbonate ions has had a negative impact on:

• coral reefs

• rainforests

• desert plants

• freshwater lakes

Sea levels could rise due to:

• Melting of polar ice caps

• Decrease in rainfall

• Increase in forest area

• Reduction in greenhouse gases

What are 2 things concerning the Ocean drive our weather:

• Temperature and currents

• Salinity and tides

• Waves and pressure

• Depth and color

The ocean is the single largest reservoir of:

• heat at Earth's surface

• carbon dioxide in the atmosphere

• freshwater on Earth

• oxygen in the biosphere