Notesale: Turn your study into money

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above

---

Marine Biology – Unit 2
Properties of a solid – Fixed shape and volume, dense particles
Properties of a liquid – Fixed volume but takes shape of container, spread particles
...

Temperature is a measure of kinetic energy in particles
...
It is movement from an area of high
concentration to low concentration
...

Partially enclosed by land
...
Between Africa and Asia
...
Not much precipitation or run-off
...

Sea water is a mixture
...

CO2 is more soluble than air
...

•Others dissolve to make a solution that is alkaline

•Some water molecules split up to form hydrogen ions(H+) and hydroxide ions (OH)
•Acids have more hydrogen ions than hydroxide ions
•Alkaline has more hydroxide ions than hydrogen ions
PH scale:
•Neutral=7
•Acidic=less than 7
•Alkaline=more than 7
Density affects the properties, levels, currents, temperature, and salinity of seawater
...

Sunlight zone: upper layer - top 200m
Twilight zone: some sunlight penetrates (200m-1000m down)
Midnight zone: no light
...
Underneath twilight zone

Secchi disk: 30cm(12in) in diameter, marked rope, used to record depth
...

Upwelling: nutrient-rich Cold water rises from deep ocean
Wind causes surface water to move from the coast creating a low-pressure area near the shore
...

El nino is a climate phenomenon that affects weather patterns around the world
...
This usually occurs
every 2-7years
...

•
•
•
•
•

concentration of nutrients in water decreases
Rate of growth and reproduction decrease in producers
...

All animals in food chain start to decrease in population size
...




---