Final Exam MCQ (Mod 1-30)

Intraspecific competition causes?

survival of specie to decrease

reintroducing predators in a park can cause?

The predators to go outside the park and cause destruction

resource partitioning is?

different species feed on the same thing but different whereabouts

Flies and finches have what type of relationship?

a parasitic one, which decreases breeding rate for flies but give homes to finches

Alaska is known for?

largest area of old growth forest

Taiga is what type of biome?

Thick forest that is well adapted to short growing seasons

Savana is what type of biome?

Long dry seasons, that contains shrubs and bushes

Tropical rain forest is what type of biome?

Wet, warm, and has little seasonal variation

Freshwater biomes is good for?

as a source to create water to drink

Intertidal zones is near?

The coast, which where low tide and high tide resides.

organisms that have the widest range of salinity can be native to?

a estuary lagoon since they can be in saltwater and freshwater

why do phytoplankton only stay near the surface of the ocean?

because they feed on sunlight from the sun since the light can’t travel far.

what’s a way to measure methane gas

a drone since its inexpensive and can collect data from afar.

if soil is filled with nitrogen what do bacteria do?

the bacteria converts free nitrogen into nitrogen compound

carbon that is left on the soil does what?

it goes in the soil to contribute to the carbon cycle and do carbon exchange.

percentage change is?

new-old/old

net

gross-res = net

ocean is so huge it can?

support a lot of producers such as phytoplankton which creates food for the sea creatures

Trophic level 10% rule?

every time we go up on the pyramid the energy transfer is only 10% of the original and 90% is lost

food web?

the flow of energy is according to the arrows, ex: a fish go towards a bear

When do seafloor happens?

when a plate moves, seafloor is created to fill in its spot.

when a convergent plates collides with another plate?

forms islands, volcanoes, mountains.

earthquake is caused by?

stored energy in locked plates

Atlantic ocean crust is always?

dividing since it is always making new crust from the seafloor

pacific ocean is always?

converging , due to subduction zones

what can we do with geothermal energy? (near tec plates)

use it to create electricity

uplift can cause?

mountains since it is converging

fertilization with manure can do what to soil?

help soil structure and drainage

using crop rotation can help with?

improving water clarity

agriculture comes with the risk of?

erosion from rain and wind.

when a river flow it collects what?

sediments and bacteria

a decrease in water clarity can help infer?

that there is a increase in soil erosion “turbidity”

clay → silt → sand

increasing size

clay is the best for?

landfill so it can partially prevent chemical runoff

to prevent runoff which is filled with sediment?

we can use vegetation which absorb these sediments

watershed is known for?

to understand runoff and the flow of water

sun radiation cannot?

hit tectonic plates because its under the ground silly.

radio signals are usually reflected at

the thermosphere

if the earths axis change?

seasons will change as well

the earths atmosphere contains mostly?

nitrogen

troposphere has the most?

weather, and only weather can occur here, the most molecules

stratoshpere is considered?

the ozone layer

exosphere is known for?

the lowest atmospheric pressure

heat is absorb in the troposphere but where?

the lower half since sunlight is mostly absorb by plants

If the northern hemisphere is tilted away ?

it is winter, and has less than 12 hours of sunlight

warm air rises at 0 degrees(equator) and then what?

drops at 30 degree N and S and the cycle resets ( hadley cell)

dec 21?

lower solar radiation

deserts are commonly found at?

30 degree N and S

photodissociation occurs in the?

thermosphere

stratosphere absorbs what type of light?

ultraviolet lights

auroras are found in what atmosphere layer?

thermosphere

water vapor usually occurs in?

the troposphere

antartica experience 24h sunlight on what day

dec 21

la nina

america = dry, hot, less fish, asia = wet, cold. upwellimg, rainfall, more fish

el nino

asia= dry, hot, less fish, america = wet, cold. upwellimg, rainfall, more fish

cold ocean can do what for the atmosphere?

pick up heat on Africa which cools the continent

cutting trees can do what?

allow more co2 to go in the atmosphere

to help tragedies of the commons we have to?

share resources

clean cutting near a river can cause?

runoff of sediments

a depletion of fishing stock is?

tragedies of the commons

water pollution near gulf of mexico is?

traegdy of the commons

accumulation of trash in the great pacific is just?

a garbage patch

fishes are shared resources what happens if company compete?

more competition

to further increased food production we have to?

current agriculture evaluated and checked.

using artificial fertilizer can help?

target a crop

tilling can cause?

eutrophication from excessive fertilizer use

crop rotation can help with?

sediment runoff

gm crops can cause?

lost of genetic variation and diversity in crops

as more fertilizers or crop grow what do weeds do?

grow resistance

herbicides act as?

endocrine disrupters

if the use of agriculture water is being used what can happen?

aquifer being depleted

coastal area with aquifers can cause?

saltwater intrusion over long periods of time

drip irrigation can be?

very expensive and extensive labor to set up

furrow irrigation are used for?

orchards or trees

pesticides can cause?

harm to other specie than the targeted specie

insects can become what to pesticides?

resistance over a long period of time

Oglala aquifer is located in

USA

to help fish being overcaught and extinct from bycatch

government can put a catch limit

if animals are stuck together and compact they can be?

sick

extracting and separating gold can cause?

contamination with cyanide

coal is found in what part of the US?

eastern USA, where it is hot and not too cold.

planting vegetation can help with?

prevent soil erosion

use of heavy equipment on top of a mountain removal is another way to say?

explosives! boom boom!

a way to make crabs thrive?

put a quota(catch limit), or provide a better habitat for the crab

denitrifying bacteria from volcanic activity contribute to what resevoir?

the atmosphere

using drones can help with what towards methane gas?

help predict erosion hotspots and reduce impact on village and habitat

using the drone we can?

compare data from the site and the drone for accuracy

phosphorous do not have a gaseous state therefore?

movement to aquatic system is very low.