Human Impact

Multiple Choice

What is a NON-NATIVE species?

• a plant or animal that is in its right place

• a plant or animal that has been moved to a new place where it doesn't belong

• a kind of plant that no animals eat

• a kind of plant or animal that doesn't live anywhere

Multiple Choice

What is something that is common to most invasive species?

• they don't have many predators in their new area

• they don't live long

• they can't have babies in the new area

• they can't eat anything in the new area

Multiple Choice

Which statement about overfishing is NOT true

• 2050 is the year experts feel fisheries will collapse

• 90% of all predatory fish are gone

• Overfishing has an impact on marine foodwebs and ecosystems

• Overfishing isn't a thing

Multiple Choice

What is fishing down the food web?

• When larger predatory fish eat smaller ones

• When large predatory fish have been overfished forcing the catching of smaller fish down the food web

• When Fisherman take a number of fish from each trophic level

• Using primary consumers to catch secondary consumers

Multiple Choice

What is it called when marine organisms are accidently caught in the nets used for fishing?

• Bycatch

• Badcatch

• Boomcatch

• Byecatch

Multiple Choice

Which type of nets catch the most bycatch

• Longline

• Siene Net

• Gill Net

• Trawl

Multiple Choice

What are Ghost Nets

• Nets that are used at night to catch marine organisms

• Nets left discarded in the ocean that marine animals get entangled in

• Invisible like nets used to catch fish by surprise

• Ghosts do not exist

Multiple Choice

Ghost nets make up almost 50% of the garbage in the Ocean Garbage Patch

• True

• False

Multiple Choice

Most ocean pollution comes from land based sources

• True

• False

Poll

Which do you think so far is the biggest impact on the ocean?

• Natural events

• Human impact

• Invasive Species

• Pollution

Multiple Choice

The decrease in the Ph of the ocean is called

• calcium carbonate

• ocean acidification

• carbonic acid

• ocean carbonization

Multiple Choice

A mojor cause of ocean acidification is

• using hydropower energy

• mining for minerals

• burning of fossil fuels

• forest fires

Multiple Choice

The greenhouse gas mostly responsible for ocean acidification is

• CACO2

• CO2

• H2O

• NO2

Multiple Choice

An increase of nutrients that cause a photoplankton bloom is called

• Eutrophication

• Bioaccumulation

• Biomagnification

• Runoff

Multiple Choice

The lackl of oxygen from the water due to bacteria decomposition is called a

• aphotic zone

• hypoxic zone

• heterotrophic zone

• autotrophic zone

Multiple Choice

Dead zones are caused by

• nutrient pollution, mostly agricultural runoff

• oil pollution, mostly by oil ships

• plastic pollution

• ghost nets

Multiple Choice

Which statement is incorrect....Runoff of pollutants an pesticides enter the water through runoff and

• get absorbed or consumed by organisms

• remains in the fat of organisms

• move its way up the food chain

• is immediately excreted

Multiple Choice

Increase of pollution concentration within the food chain is called

• accumulation

• biomagnification

Multiple Choice

Oil can be devastating to salt marsh and mangroves because of all but...

• oil can not be dispersed by wave action

• oil is absorbed into the soft sediment

• it can persist for more than 30 years

• tised will carry the oil out to sea

Multiple Choice

Oil is insoluble in water

• True

• False

Multiple Choice

85% of ocean pollution comes from...

• runoff

• oil rigs

• oil shipping

• nayural release