Question | Answer |
what percentage of Earth's water is in the ocean | 97% |
the body is approximately | 70% water |
A gallon of gasolines takes approximatley how many gallons of water to produce | 70 gallons |
the largest user of water int he US homes is | toilet flushing |
to produce a car, how mnay gallons of water are used | 100,000 gallons |
an aqueduct is | a conduit of channel that moves, usually by gravity |
what is ground water | water beneath the surface of the ground |
a period of little or no rain is called | a drought |
the region draining into a river, river system, or other body of water is | a watershed |
the hydroshere is best defined as | all the water on the surface of the planet |
an aquifer is | porous, water-bearing layers of gravel or rock below the earth's surgave; reservoirs for groundwater |
conservation is | the care of natural resourves for future generations |
total magnification is calculated by | multiplying the magnifications of the eyepieve and the objective lens |
the correct way to carry a microscope is | with one hand on the base and one on the arm |
a compound microscope always has | more than one lens |
when focusing a microscope on medium power | one should use the coarse adjustment knob |
to estimate the size of a specimen when using the microscope, you need to know | the diameter of the field of view |
what does EBMUD stand for | East Bay Municiple Unity District |
Where does the water from EBMUD come from | the Sierra mountains |