Solutions (100% Correct)
Which of these is the best explanation of how a smooth round stone
became smooth? Right ans - it was in a stream for a long time
When a lobster grows a claw to replace one that was lost, the proccess is
called Right Ans - Regeneration
Any astronomical body that revolves around a larger body is called?
Right Ans - A Satellite
In chemistry, to be classfied as an organic substance must contain?
Right Ans - Carbon atoms
Which element does not contain any neutrons? Right Ans - Hydrogen
The chemical formula of a compound describes the element the compound
contains and the Right Ans - ratio of element in the compoud
What is the symbol for the hydroxyl ion Right Ans - OH-
The tympanic membranes are also known as the Right Ans - ear drums
Which of the following actions produce a chemical change? Right Ans -
Adding Salt To The Hot Water
Choking is prevented by the Right Ans - Epiglottis covering the voice
box
What do a hydrogen molecule and an oxygen molecule have in common?
Right Ans - THE SIZE
Which of the following is a non-renewable resource? Right Ans -
COPPER
What are two main gases that make up stars? Right Ans - hydrogen and
helium
, When sodium atoms form sodium ions they: Right Ans - lose electrons
Which of the following enables this pen to work? Right Ans - capillary
action
A student bought a sandwich for 80 cents, milk for 20 cents, pie for 30
cents. how much did the meal cost? Right Ans - $1.30
A radar is designed to report the track of aircraft every sec, if this radar
reports 30 track in one min. what percentage? Right Ans - 50%
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? Right Ans - $5.00
A woman is looking for bigger square office. she finds an office twice the
area of her current office. the perimeter of her current office is 88ft, how
many sqaure ft? Right Ans - 968 SQ FT
How many feet of chain fence are necessary to enclose a dog pen that is
square and has an area of 64 square feet? Right Ans - 32
A train goes twice as fast downhill as it can go uphill, 2/3 as fast uphill as it
can go level ground. if it goes 120miles per hour down hill, how long will it
take to travel 45 miles on flat land? Right Ans - 1/2 HOUR
Each August, a restaurant's rent is adjusted to the cost of living index. The
rent has been 1,550 a month, and the cost of living index for this August
was 3.7%. What is the new rent per month? Right Ans - 1,607.35
There are 9 red and 6 green marbles in a bag. A child reaches in the bag and
randomly takes one marble. What is the probability pf that child getting a
green marble? Right Ans - .66
the pet store has 6 puppies selling for 104$ each and 12 kittens selling for
24$ each. today, only 2 puppies and 8 kittens were left. the rations of sales
of puppies to kittens? Right Ans - 13 TO 3