take home test help

[aldo]

hello, i need help on my take home oceanography test because i just dont understand anything, all of the following questions are truth or false, so plz help me out here guys, i rly need to pass this test to pass the class.

 

 

since their initial formation, the ocean basins have stayed relatively unchanged.

 

hydrogen bonds are weak associations between polar molecules such as water

 

density increases with increasing temperatures.

 

abyssal plains are found on the deep ocean floor at depths of up to 5000 meter.

 

most major animal phyla evolved some 500 million years ago

 

the southern hemisphere is composed of over 2/3 landmasses

 

carbon dioxide is limited in the ocean

 

two important limited nutrients in the ocean are nitrogen and phosphorus

 

the oxygen minimum zone often corresponds with the thermocline

 

the himalaya mountains are a result of seafloor spreading

 

an atmospheric ozone layer made of oxygen protects the earth from ultraviolet radiation

 

pressure in the ocean increases about 1 atmosphere for every 10 m increase in depth

 

in general the photic zone extends to about 100m

 

gyres represent the largest circulation patterns in the ocean

 

surface waves can potentially carry water thousands of miles across the ocean

 

the mantle is situated between the earths crust and the outer core

 

an important evolutionary stage was the ultimate accumulation of oxygen from the photosynthesizerss about 2.5 billion years ago

 

excess precipitation occurs at tropical latitudes as well as at polar latitudes