Dissolved Oxygen
Density of Water vs. Ice
Estuaries
Thermocline
Halocline
shadow zone so far channel
100

what is the measure of how much oxygen  is dissolved in water .

Dissolved oxygen

100

Is density more dense than water?





The clay has a greater mass than an equal volume of water. So, the density of clay is greater than the density of water.


100

What is an estuary?

Estuaries are areas of water and shoreline where rivers meet the ocean or another large body of water.

100

what is theormocline means

a steep temperature gradient in a body of water such as a lake, marked by a layer above and below.

100

what is a shadow zone

 cannot detect direct P waves and/or S waves from an earthquake

200

what causes dissolved oxygen 

Oxygen enters water by direct absorption from the atmosphere, which is enhanced by turbulence

200

Why is density lower than water?

ice is less denser than water because in ice the molecules arrange themselves in a rigid tetrahedral

200

What are the 4 types of estuaries?

The four major types of estuaries classified by their geology are drowned river valley, bar-built, tectonic, and fjords.

200

what dose hyocline means 

A relatively sharp discontinuity in ocean salinity at a particular depth.

200

what is a sofar channel

is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum

300

where can disolved oxygen be found 

running water  , swift moving stream,

300

what is density



Density is the number of things—which could be people, animals, plants, or objects—in a certain area.


300

How estuary is formed?

Coastal plain estuaries  are created when sea levels rise and fill in an existing river valley.

300

Why is the thermocline important?

Due to the temperature difference, the thermocline creates a density gradient between the various pelagic ocean zones


300

how shawdow zone formed

by the liquid core and P waves being bent (refracted) by the liquid core.

400

What causes low dissolved oxygen in water?

Low dissolved oxygen (DO) primarily results from excessive algae growth caused by phosphorus.

400

what is water 


water, a substance composed of the chemical elements hydrogen and oxygen 


400

What animals live in estuaries?

shore and sea birds, fish, crabs, lobsters, clams, and other shellfish.

400

What is a halocline in the ocean?


, vertical zone in the oceanic water column

400

How many shadow zones are there?

there are two different types of shadow zones

500

Why does cold water have more dissolved oxygen?

The quick answer is that the colder a liquid, the more gas it can dissolve or "contain" as you aptly put it

500

Is water heavier than density?

Water is more dense


500

Is estuary a freshwater ecosystem?

Estuaries are ecosystems where freshwater from streams and rivers meets.

500

What is thermocline in a lake?

depth at which the temperature gradient is steepest during the summer

500

Why is shadow zone important?

Seismic shadow zones have taught us much about the inside of the earth.