What is the beginning of a river called?
a.) Head
b.) A pex
c.) Point A
d.) Heart
Head
100
How does the pollution affect the passaic river?
a.)overfishing
b.)accumulation of toxins
c.)sewage clean up
d.)drought
accumulation of toxins in fish, birds, and wildfire
100
Whats the largest Ocean?
What is the pacific ocean
100
What two types of freshwater ecosystems are flowing?
What is Streams and Rivers
100
What is the definition of organisms?
What is all living things
200
Where do rivers start from?
Snow, ice or glaciers melting from mountains
200
What is the biggest threat to the ocean in a big way?
a.)global warming
b.)over fishing
c.)spilling garbage in the sewage in the ocean
d.)all of the above
all of the above
200
What percent of the earth surface is covered by oceans?
What is 70%
200
What percent of saltwater is there on earths water composition?
a.) 70%
b.) 3.76%
c.) 97.5%
What is 97.5%
200
all producers need what 2 things to make their own food?
What is nutrients and sunlight
300
What is the largest waterflow in the world?
What is Amazon River
300
What would happen if an ecosystem is destroyed?
a.) increase flooding
b.) rising sea level
c.) both a & b
-Increased flooding due to erosion of soil and lack of trees
-rising sea levels due to melting of glaciers
300
At what part of the ocean is new ocean floor being formed?
What is at the Mid Ocean Ridge
300
As water flows down a mountain to flatter ground, rivers generally become...
a.) wider
b.) warmer
c.) slower
d.) all of the above
What is all of the above
300
organisms have to be adapted for any changes in what 2 thing?
What is levels & sanity
400
what is the percentage of water that dams hold back in order to operate
a.) 15%
b.) 100%
c.) 1%
dams hold back 15% of the worlds freshwater runoff
400
Which animal has modified ecosystems more than any other animal and has had the greatest negative impact on world ecosystems?
a.) gypsy moth
b.) human
c.) shark
d.) zebra
What is human
400
What king of water would be found in an Estuary
What is Salt water and Fresh water
400
What do wetlands do for the environment?
What is help with flood control and filter pollutants out of water
400
Why is it that in the deep parts of the ocean there is nutrients?
What is dead organisms sink down from above
500
Rivers carry an important ingredient from land to oceans called...
nutirents
500
Most pollutants enter aquatic ecosystem by..
a.) a runoff
b.) global warming
c.)nutrients
a runoff
500
How does the ocean environment change with depth?
What is Increase in depth and pressure & decrease in light in temperature.
500
The cooling of water vapor leads first to this product of the water cycle