Question 1

What is water Quality?

Accepted Answer

water's fitness for a particular use

Answer

water running off hot pavement

Answer

water used mainly for agriculture

Answer

all of the above

Question 2

water is a unique substance. It can be found on Earth in all three states----solid, liquid, and gas. Which of the following are other properties of water?

Accepted Answer

all of the above

Answer

exhibits surface tension

Answer

is transparent

Answer

acts as a solvent

Question 3

how does water pollution affect aquatic life?

Accepted Answer

all of the above

Answer

cloudy water blocks light and slows plant growth

Answer

too much fertilizer causes overgrowth of algae

Answer

toxic chemicals are poisonous to living things

Question 4

how do humans affect water quality?

Accepted Answer

by polluting or conserving water

Answer

by boiling and freezing water

Answer

by taking biological surveys

Answer

by creating surface tension

Question 5

What is the hydrosphere?

Accepted Answer

all the water on Earth

Answer

none of the above

Answer

two hydrogen atoms and one oxygen atom bonded together

Answer

all the freshwater on Earth

Question 6

what is conservation?

Accepted Answer

careful use

Answer

taking anything we want

Answer

taking water fro granted

Answer

thinking very hard

Question 7

how does water's temperature affect the amount of oxygen in it?

Accepted Answer

cold water holds more oxygen

Answer

oxygen is vital for life

Answer

cold water floats

Answer

liquid water turns to gas

Question 8

Where does the water cycle start?

Accepted Answer

anywhere water exists in any form

Answer

in the oceans

Answer

when precipitation falls to the ground

Answer

water vapor condenses in clouds

Question 9

what is surface water?

Accepted Answer

water that flows over the land

Answer

water that soaks into the ground

Answer

water absorbed by plants and released slowly into waterways

Answer

water frozen in glaciers, snowpacks, and polar ice caps

Question 10

what is ground water?

Accepted Answer

water that soaks into the ground

Answer

water absorbed by plants and released slowly into waterways

Answer

water frozen in glaciers, snowpacks, and polar ice caps

Answer

water that flows over the land

Question 11

where does water go when it runs off a street?

Accepted Answer

through storm drains or ditches, then directly into streams, lakes wetlands, bays and estuaries without being cleaned or processed

Answer

to wastewater treatment plants for processing before being returned to the environment

Answer

to pick up air pollution forming acid rain

Answer

to drinking water treatment plants, then through pipes to our taps

Question 12

What is erosion?

Accepted Answer

the movement of solid material such as tock, soil, or mud

Answer

water pollution that comes from a broad area or number of sources

Answer

any bit of rock or soil that is suspended or carried in water

Answer

all of the above

Question 13

what is a watershed?

Accepted Answer

all the land that drains water into a particular body of water

Answer

the area where precipitation first collects in tiny trickles too small to create a permanent channel

Answer

a stream that flows all year long

Answer

a stream that empties into a particular body of water

Question 14

What is point-source pollution?

Accepted Answer

Contamination that can be traced to a single source

Answer

the movement of solid material suck as rock, soil or mud

Answer

a stream that empties into a particular body of water

Answer

water pollution that comes from a broad area or number of sources

Question 15

How can some fish change their depth in the water column?

Accepted Answer

B  and C

Answer

by using their fins

Answer

the more air a fish's swim bladder contains, the high the fish will suspend or float in the water

Answer

waters surface tension

Question 16

what is the function of a fish's lateral line organ?

Accepted Answer

to sense vibrations in the water

Answer

to help them hide from their enemies

Answer

to reduce friction as fish swim through the water

Answer

to taste food even before taking it into their mouths

Question 17

Why are fish coated with slime?

Accepted Answer

to reduce friction as fish swim through the water and to protect them from disease

Answer

to absorb up to 85% of the oxygen available in the water

Answer

none of the aabove

Answer

to help them blend in to t he dark bottom when seen from above, and with the bright surface when seen from below

Question 18

which of these is correct about a community in the environment?

Accepted Answer

multiple populations of species make up a community

Answer

each species inhabit multiple niches

Answer

a community inhabits a specific niche

Answer

multiple communities make up a population

Question 19

what is the biggest threat to aquatic communities?

Accepted Answer

Human-caused habitat destruction

Answer

all of the above

Answer

natural selection

Answer

predator-prey relationships

Question 20

why can most energy pyramids continue for only four or five trophic levels and support only a few top-level consumers?

Accepted Answer

all of the above

Answer

most of the available food energy is changed to heat energy or kinetic energy moving up each trophic level

Answer

only a little of the original energy from the sun passes from one trophic level to the next

Answer

animals use energy doing tasks such as hunting and keeping their bodies warm

Question 21

in a stream, a predator that eats insects only from the gravel bottom is said to fill that specific ________ of the habitat.

Accepted Answer

niche

Answer

trophic level

Answer

population

Answer

community

Question 22

what kinds of aquatic ecosstems do we have in Texas?

Accepted Answer

all of the above

Answer

bays, estuaries, and oceans

Answer

lakes, ponds, and wetlands

Answer

aquifers, springs, rivers and streams

Question 23

what is biodiversity?

Accepted Answer

the variety and number of different organisms and populations, and the way they live together

Answer

none of the above

Answer

a complex web of relationships between livingg and non-living things

Answer

the kinds of aquatic ecosystems found in Texas

Question 24

some human activities that reduce aquatic biodiversity include:

Accepted Answer

all of the above

Answer

draining a wetland

Answer

damming a river

Answer

pumping water out of an aquifer

Question 25

a confined aquifer has several parts including:

Accepted Answer

permeable material, karst, and springs

Answer

permeable material, impermeable material, recharge zone and springs

Answer

recharge zone, permeable material and springs

Answer

impermeable material, recharge zone, and springs

Question 26

animals in ecosystems in aquifers are adapted to which of the following conditions?

Accepted Answer

A and C

Answer

no light

Answer

nutrient poor conditions

Answer

aerobic conditions

Question 27

the headwaters of a river is often found at____________

Accepted Answer

a spring

Answer

a recharge zone

Answer

an unconfined aquifer

Answer

a low recharge aquifer

Question 28

we can conserve groundwater by all of the below EXCEPT--

Accepted Answer

using impermeable materials for building

Answer

taking chemicals to hazardous waste diposal sites

Answer

using less fertilizer and herbicides

Answer

using less water from the aquifer

Question 29

Aquifers are habitat for unique aquaatic organisms that require clean, clear, free flowing water. These ecosystems are predictable environments with constant temperature. how woulda drought affect these ecosystems?

Accepted Answer

decrease spring flow

Answer

increase temperature

Answer

decrease aerobic conditions

Answer

increase carrying capacity

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