Show:
Rivers
Oceans
Wetlands
Estuaries
human impact
100
Installations of dams, water over use, agricultural over use, climax change and no rain fall
What Cause Rivers to dry up
100
1. Tides in the sea are caused by A-Effects of the moon B-Effects of the sun C-Sun and the moon D-Gravitational centrifugal or centripetal forces
C-Sun and the moon
100
What are wetlands? a. habitats, b. lands that are often wet, c. homes to a variety of animals, d. all of the above
Answer: d. Wetlands are habitats which periodically have wet, waterlogged soils or are covered with a relatively shallow layer of water. Wetlands are located in low-lying areas where rain and groundwater help keep them saturated. Wetlands are home to a great variety of animals including birds, mammals, fish, amphibians and insects.
100
name one type of estuaries
lagoon,delta
100
how do humans affect rivers?
Sulfur dioxide and nitrous oxide emitted from factories and power stations enter river systems through acid rain
200
The activities are sedimentation, pollution, climate change, deforestation, landscape, and urban growth
How do human activities affect the water supply
200
Which of the following oceans is between Africa and Australia? A-Indian Ocean B-Arctic Ocean C-South Atlantic Ocean D-South Pacific Ocean
A-Indian Ocean
200
Which of these is/are an example of a freshwater wetlands? a. swamp, b. freshwater marsh, c. bog, d. all of the above
Answer: d.
200
why are estuaries important to our environment
They provide homes for many species of wildlife.
200
what human activity's affect oceans?
fishing, coastal development and pollution from shipping
300
What are some humans Impacts about rivers?
What are some humans Impacts about rivers? Impacts on a species or non living element may have long term consequences for a river ecosystem
300
The canal joining Baltic Sea to North Sea is A-Neil Canal B-Kiel Canal C-Panama Canal D-Suez Canal
B-Kiel Canal
300
Are freshwater or saltwater marshes more common in the world?
Answer: Freshwater marshes make up ~90% of wetlands!
300
Water is brought to an estuary from a variety of sources. Which of the following is responsible for increasing the salinity in the estuary?
tides
300
how do humans affect wetlands?
hannelization, dam construction, discharge of industrial wastes and municipal sewage (point source pollution) and runoff urban and agricultural areas how do humans affect wetlands
400
which is the biggest river in the world? A- Rio Amazonas B- Nile C- Yangtse d- Niger
A- Rio Amazonas
400
Which of the following is the smallest ocean of the world? A-Pacific B-Indian C-Atlantic D-Arctic
D-Arctic
400
True or False? The water level of a marsh usually stays about the same throughout the year.
Answer: False: Water levels increase during the winter because of the rain and decrease during the summer when it is dryer
400
estuaries have also been called?
bays ,lagoons ,sounds ,sloughs
400
how do humans harm the environment ?
pollutants from industrial plants dumped into waterways, cutting down entire sections of forest, and prolific burning of fossil fuels
500
Where is the biggest river located A-Africa B- USA C- Mississippi D- Asian
A-Africa
500
Through which one of the following Straits, does a tunnel connect the United Kingdom and France? A-Davis Strait B-Denmark Strait C-Strait of Dover D-Strait of Gibraltar
C-Strait of Dover
500
True or False? If you were to walk into a swamp, you might drown in quicksand.
Answer: False: Quicksand does not occur in swamps. Swamps can actually have as little water as just a few inches or none at all (in the dry season).
500
Water in most estuaries is brackish because of the mixing of fresh water from rivers and saltwater from incoming tides.
rise
500
What is the effect on earth with human impact?
global warming