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Salt Marshes And Mangroves

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Jul 10th, 2023
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10 test answers
question
The salinity in salt marshes can vary throughout the day because _______.a. river flow changes throughout the dayb. the amount of salt water in a marsh depends upon ocean tidesc. daily winds and rains result in salt and fresh water mixingd. salt water collects in the lowest elevations
answer
b. the amount of salt water in a marsh depends upon ocean tides
question
Salt marshes are found _______.a. at high elevationsb. away from the coastc. on high energy coastlinesd. on low energy coastlines
answer
d. on low energy coastlines
question
The traditional view of mangrove forests as wastelands and unhealthy environments helped promote their degradation because _______.a. mangrove forests are unproductive, unhealthy habitatsb. people did not feel it was necessary to preserve themc. mangrove forests do not need to be preservedd. all of the above
answer
b. people did not feel it was necessary to preserve them
question
Mangrove have two types of specialized root systems.
answer
True
question
How has human use of salt marshes changed over time?a. Humans have come to value salt marshes and now seek to preserve and restore them.b. Humans now use drained salt marshes exclusively for agriculture.c. Humans have begun to use salt marshes for landfills.d. Humans have begun to use marsh land for housing and commercial development.
answer
a. Humans have come to value salt marshes and now seek to preserve and restore them.
question
Mangrove pneumatophore roots _______.a. prop the trees up above the water lineb. excrete excess saltc. absorb carbon dioxide from the aird. none of the above
answer
c. absorb carbon dioxide from the air
question
Mangrove forests were traditionally viewed as unhealthy, unproductive environments.
answer
True
question
Which of the following is not true concerning salt marshes?a. Historically they were drained for agriculture.b. Historically they were drained for development.c. Salt marshes are not productive habitats.d. Remaining marshes are severely degraded.
answer
c. Salt marshes are not productive habitats.
question
Why do many fishermen support efforts to protect and restore mangrove forests?a. Most fishermen are environmentalists.b. Many fish breed in mangrove forests.c. They lay their nets in mangrove forests.d. Mangrove forests provide valuable hardwoods.
answer
b. Many fish breed in mangrove forests.
question
Mangrove forests help mitigate storm damage.
answer
True
1 of 10
question
The salinity in salt marshes can vary throughout the day because _______.a. river flow changes throughout the dayb. the amount of salt water in a marsh depends upon ocean tidesc. daily winds and rains result in salt and fresh water mixingd. salt water collects in the lowest elevations
answer
b. the amount of salt water in a marsh depends upon ocean tides
question
Salt marshes are found _______.a. at high elevationsb. away from the coastc. on high energy coastlinesd. on low energy coastlines
answer
d. on low energy coastlines
question
The traditional view of mangrove forests as wastelands and unhealthy environments helped promote their degradation because _______.a. mangrove forests are unproductive, unhealthy habitatsb. people did not feel it was necessary to preserve themc. mangrove forests do not need to be preservedd. all of the above
answer
b. people did not feel it was necessary to preserve them
question
Mangrove have two types of specialized root systems.
answer
True
question
How has human use of salt marshes changed over time?a. Humans have come to value salt marshes and now seek to preserve and restore them.b. Humans now use drained salt marshes exclusively for agriculture.c. Humans have begun to use salt marshes for landfills.d. Humans have begun to use marsh land for housing and commercial development.
answer
a. Humans have come to value salt marshes and now seek to preserve and restore them.
question
Mangrove pneumatophore roots _______.a. prop the trees up above the water lineb. excrete excess saltc. absorb carbon dioxide from the aird. none of the above
answer
c. absorb carbon dioxide from the air
question
Mangrove forests were traditionally viewed as unhealthy, unproductive environments.
answer
True
question
Which of the following is not true concerning salt marshes?a. Historically they were drained for agriculture.b. Historically they were drained for development.c. Salt marshes are not productive habitats.d. Remaining marshes are severely degraded.
answer
c. Salt marshes are not productive habitats.
question
Why do many fishermen support efforts to protect and restore mangrove forests?a. Most fishermen are environmentalists.b. Many fish breed in mangrove forests.c. They lay their nets in mangrove forests.d. Mangrove forests provide valuable hardwoods.
answer
b. Many fish breed in mangrove forests.
question
Mangrove forests help mitigate storm damage.
answer
True