Vocab Practice
Which is the best term to use for pollution?
a) toxic
b) contamination
c) trash
b) contamination
Groundwater can become polluted by surface water in which of the following ways?
a) ocean water flows back into rivers & is absorbed into the ground
b) acid rain pollutes ground water
c) surface water seeps into the ground & can pollute the ground water
c) surface water seeps into the ground & can pollute the ground water
What role do phytoplankton play in aquatic systems?
a) they are produces that provide energy
b) they are predators that maintain symbiosis
c) they are primary consumers that eat organisms
a) they are producers that provide energy
Which of the following measures how acidic or basic a substance is?
a) pH
b) turbidity
c) dissolved oxygen
a) pH
What percent Earth's water is saltwater?
a) 70%
b) 3%
c) 97%
d) 1%
c) 97%
Which is the best synonym for potable?
a) portable
b) edible
c) drinkable
c) drinkable
Humans contribute to nutrient pollution in many ways. Which of the following is ONE of those ways?
a) restoring wetlands
b) water skiing in lakes
c) using excessive fertilizers in farming
c) using excessive fertilizers in farming
Which of the following takes nutrients to shallow waters where phytoplankton live?
a) upwelling
b) downwelling
c) winds
a) upwelling
Which of the following measures how cloudy water is?
a) pH
b) turbidity
c) nutrient content
b) turbidity
Where can the majority of Earth's freshwater be found?
a) glaciers & ice caps
b) lakes & rivers
c) soil & atmosphere
a) glaciers & ice caps
Which term describes a massive growth of algae?
a) algal bloom
b) phytoplankton
c) zooplankton
a) algal bloom
What percent of Earth's water is easily accessible & potable?
a) 1% of total freshwater
b) 1% of total global water
c) 3% of total freshwater
a) 1% of total freshwater
Which of the following carries oxygen rich waters to deep-sea ecosystems?
a) upwelling
b) downwelling
c) winds
b) downwelling
Which refers to the level of nitrates & phosphates in water?
a) pH
b) turbidity
c) nutrients
c) nutrients
How can we determine if a lake can be used as a source of freshwater?
a) check temp & depth
b) check depth & width
c) check temp and pH
c) check temp and pH
A water source that has been filtered by rock & is found deep within the soil is called a(n)...
a) estuary
b) aquifer
c) groundwater
b) aquifer
More algal blooms are being noticed in a local body of water. Which could be the cause?
a) decomposers in the lake causing more nutrients
b) nearby factories dumping wastewater in the lake
c) fertilizers & pet wastes in runoff
c) fertilizers & pet wastes in runoff
Why do warm ocean currents tend to be in more shallow waters?
a) warm water is more dense than cold water
b) warm water has lower levels of salinity
c) warm water is less dense than cold water
c) warm water is less dense than cold water
Which tells how much oxygen is in a water source?
a) pH
b) dissolved oxygen
c) nutrients
b) dissolved oxygen
Water with high turbidity can indicate...
a) it is safe to drink b) it has a low pH
c) it is unsafe to drink d) it is too cold to consume
c) it is unsafe to drink
The system that contains all of Earth's water is called the ____________.
a) atmosphere
b) hydrosphere
c) stratosphere
b) hydrosphere
How does the Gulf Stream affect coastal climates?
a) it makes them colder and drier
b) it makes them warmer and wetter
c) it makes them colder and wetter
b) it makes them warmer and wetter
What do phytoplankton require to grow?
a) zooplankton
b) sunlight
c) oxygen from deep waters
b) sunlight
Which can reduce water pollution entering our waterways?
a) restoring & protecting wetlands, natural filters
b) stop building rain gardens that absorb runoff nutrients
c) increase nutrients in fertilizers
a) restoring & protecting wetlands, natural filters
Which of the following can affect the health of a water system?
a) salinity & soil type
b) pH & changes in the tides
c) turbidity & nitrate levels
c) turbidity & nitrate levels