LAKES

Question 1

Its difference from oceans is it is smaller in sizes and has relative isolation

Answer 1

Lakes

Question 2

They are a _____ in the landscape that collect water

Answer 2

Topographical depression

Question 3

Where most of the worlds freshwater resides

Answer 3

The Great Lakes

Question 4

Approximately 20% of all freshwater in the planet

Answer 4

The Great Lakes of North America

Question 5

An additional 20% of freshwater are contained here

Answer 5

Lake Baikal

Question 6

Deepest lake, has ____ m

Answer 6

Lake Baikal,
1600 m

Question 7

Its remainder is contained in rift lakes of East Africa

Answer 7

Lake Tanganyika

Question 8

Second deepest lake, has ____m

Answer 8

Lake Tanganyika, 1470 m

Question 9

Where smaller, shallower lakes are concentrated

Answer 9

Lake Districts

Question 10

Lake District examples

Answer 10

Northern Minisota,
Scandinavia

Question 11

Shallowest water, where rooted aquatic plants may grow

Answer 11

Littoral Zone

Question 12

Beyond the littoral Zone

Answer 12

Limnetic zone

Question 13

Encompasses a surface layer of lakes

Answer 13

Epilimnion

Question 14

Below the epilimnion

Answer 14

Thermocline (metalimnion)

Question 15

Below the thermocline. Waters are cold and dark

Answer 15

Hypolimnion

Question 16

Influence by many factors especially lake chemistry and biological activity

Answer 16

Lake Color

Question 17

Lakes become _____ as they heat

Answer 17

Thermally stratified

Question 18

Stratified during summer

Answer 18

Temperate lakes

Question 19

Stratified all year round

Answer 19

Tropical lakes

Question 20

Breaks down in temperate lakes as they cool during fall

Answer 20

Thermal Stratification

Question 21

Limit wind-driven mixing

Answer 21

Summer

Question 22

Stratification breaks down and wind driven vertical currents mis temperate lakes from top to bottom.

Answer 22

Spring and fall

Question 23

Ice forms a surface barrier that prevents mixing

Answer 23

Winter

Question 24

Much more variable than that of the open ocean

Answer 24

Lake Salinity

Question 25

Salinity of over 200%

Answer 25

Great Salt Lake

Question 26

Well -mixed lakes of low biological production. Nearly always well-oxygenated

Answer 26

Oligotrophic

Question 27

High biological production. Depletion of oxygen

Answer 27

Eutrophic

Question 28

Nutrient enrichment as a consequence of human activities can accelerate the process. Generally resulting in increased primary production

Answer 28

Eutrophication

Question 29

Increased production of algal blooms, oxygen depletion , and reduce biodiversity

Answer 29

Eutrophication

Question 30

3 African lakes

Answer 30

1. Lake Victoria 2. Lake Tanganyika 3. Lake Malawi

Question 31

1. Lake Victoria 2. Lake Tanganyika 3. Lake Malawi Contains

Answer 31

700 species of fish

Question 32

Human Influence

Answer 32

1. Centers Human Population 2. Dumping of nutrients 3. Lake Erie 4. Introduced Species

Question 33

One of the most altered Great Lakes

Answer 33

Lake Erie

Question 34

Flows before reaching lake. Fouled with oil and catch fire.

Answer 34

Cuyahoga River

Question 35

Flows before reaching lake. Fouled with oil and catch fire.

Answer 35

Cuyahoga River

Question 36

Healthy lake that turns into an algal soup

Answer 36

Lake Erie