Which of these is the best explanation of how a smooth round stone became smooth? -
correct answer It was in a stream for a long
When a lobster grows a
... [Show More] claw to replace one that was lost, the process is called - correct
answer regeneration.
Any astronomical body that revolves around a larger body is called - correct answer a
satellite.
In chemistry, to be classified as an organic substance, a substance must contain -
correct answer Carbon atoms.
Which element does NOT contain any neutrons? - correct answer hydrogen
The chemical formula of a compound describes the elements the compound contains
and the - correct answer ratio of elements in the compound.
What is the symbol for the hydroxyl ion? - correct answer Н30
Which of the following is a renewable resource? - correct answer natural gas
How many atoms are in a single molecule of water (H20)? - correct answer 3
Regeneration in man is limited to - correct answer healing of wounds.
When scientists measure a liquid's resistance to flow, they are measuring the liquid's -
correct answer viscosity.
When sodium atoms form sodium ions, they - correct answer lose electrons.
A perpetual-motion machine can never be built because it is not possible to eliminate -
correct answer inertia,
A human skin cell divides by - correct answer mitosis.
The filament in an electric light bulb is made from - correct answer tungsten.
Terry earns a $250 salary plus $5 per sale. How many sales must Terry make to earn
$765 altogether? - correct answer 103
Jerry walked a dog from 6:40 a.m. to 7:30 a.m. one day. If he was paid at the rate of $6
per hour, how much did he earn that day? - correct answer $5.00
How many feet of chain fence are necessary to enclose a dog pen that is square and
has an area of 64 square feet? - correct answer 32
A woman is looking for a bigger square office. She finds an office twice the area of her
current office. If the perimeter of her current office is 88 feet, how many square feet is
the new office? - correct answer 968 sq f [Show Less]