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which of these is the best explanation of how a smooth round stone become smooth -stream for a long time ✔✔It was in a
Any astronomical body that revolves around a larger body is called - ✔✔Satellite If you place bean seeds between moist paper towels and watch the stem leaves appear you will see ademonstration of? - ✔✔Germination
Which element does not contain any neutrons? - ✔✔Hydrogen How many atoms are in a single molecule of water (H2O) - ✔✔ 2 Argon and Neon are..? - ✔✔Noble gases Processes of the water cycle - ✔✔Evaporation, condensation, sublimination, and so on in a balanced ecosystem, which of the following would have the greatest population? - ✔✔Plankton water droplets - ✔✔Condensation Friction is the force that - ✔✔Opposes motion between 2 surfaces Which of the following reproduce by spawning? - ✔✔Fish To test the effectiveness of plant fertilizer, groups of plants are grown with different types of fertilizer. Acontrol group of plants would? - ✔✔Not be given any fertilizer
When scientists measure a liquids resistance to flow, they are measuring the liquids - ✔✔Viscosity A radar is designed to report the track of an aircraft every second. If this radar reports 30 tracks in oneminute, what percentage of the time did the radar track the aircraft? - ✔✔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, howmuch did he earn that day? - ✔✔5.
A woman is looking for a bigger square office. She finds an office twice the area of her current office. Ifthe perimeter of her current office is 88 feet, how many square feet is the new office? - ✔✔968 square feet How many feet of chain fence are necessary to enclose a dog pen that is square and has an area of 64 sqfeet? - ✔✔ 32
A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on levelground. If it goes 120 miles per hour downhill, how long will it take to travel 45 miles per flat land? - ✔✔1/2 hour The pet store had six puppies selling for 104 each and twelve kittens selling for 24 each. Today, only twopuppies and eight kittens were left. In dollar terms, what was the ratio of sales of puppies to kittens? - ✔✔13 to 3 Jamie just bought two boxes. The first box is square, with each side measuring 10 units, and is 4 unitshigh. The second box is rectangular and has twice the volume of the square box. If the height of the second box is 5 units, and the width is 10 units, what is the length of the second box? - ✔✔16 units 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? - ✔✔.
Communique - ✔✔Message Erratically - ✔✔Irregularly Devout - ✔✔Pious Fervently - ✔✔Passionately Sustain - ✔✔Tolerate Oppressive - ✔✔Painful Negated - ✔✔Nullified Consoled - ✔✔Solaced Roosevelt made a conscious use of media.... -press ✔✔Was a president who recognized the power of the
Riding a mail plane is a low budget... -tourist attraction ✔✔Copper drew prospectors, copper ran out, town abandoned,
Physicists seek out those features of nature that are simple and universal. The secret of their success isnot so much a matter of finding answers as it is asking the right questions. The trick is keeping the questions simple and sticking to universal phenomena. Simple questions can be answeredunambiguously by careful observation of repeated experiments and by logical thinking. - ✔✔How fast do stones of particular size fall? An allergy is a hypersensitivity to substances that are essentially harmless. For as yet poorly understoodreasons, the immune system malfunctions and marshals up an army of antibodies to fight these substances. For many allergies, this malfunction causes a large amount of histamine to flood into the
bloodstream. It is overabundance of histamine that causes allergic symptoms such as headaches, rashes,and sneezing. - ✔✔Medical science does not fully understand why the body has an allergic reaction to certain substances A period of time is usually measured.... - ✔✔Calendar based The womans flying training detachment... - ✔✔Army's wish to utilize women's abilities Physical sound energy is transmitted through... - ✔✔Between the middle ear and the inner ear When we think of security for the home.... -has been identified ✔✔For example, doors should only be opened after a visitor
If A=6 and B= 5, what is the value of (a^2-b^2)^2 - ✔✔ 121 What are the factors of x^2+4x+3 - ✔✔(x+3)(x+1) Simplify: 3/5x + x - ✔✔8/5x The hypotenuse of a right triangle has a length of 14 units and a side that is 9 units long. Which equationcan be used to find the length of the remaining side? - ✔✔x^2 = 14^2 - 9
The product of 3! is - ✔✔ 6 The factors of 2x^2 + xy - 3y^2 are? - ✔✔(2x + 3y)(x - y) Graphs of the following equations are straight lines EXCEPT? - ✔✔y = x^2 + What is the product of (a - 1) and (2a + 2)? - ✔✔2(a^2 - 1)
What is the tool shown? - ✔✔Cable stripper A material that has very high resistance to the flow of electric current is? - ✔✔An insulator Which one of the following devices protects A circuit against current overloads? - ✔✔Fuse When it is necessary to switch on an electrical current from a remote location, which device could beused? - ✔✔Amplifier
Which of the following best carries electric current? - ✔✔Conductors Electrical arcing occurs when - ✔✔High-voltage electricity jumps between two conductors Many home appliances and power tools are made safer by using - ✔✔3- wire cords and plugs The catalytic converter is a part of what system? - ✔✔Emission control system The function of the master cylinder is to - ✔✔Apply hydraulic pressure to the wheeled cylinders Which of the following is part of a conventional distributor? - ✔✔Spark plug The arrow is pointing to what automotive components - ✔✔Rings Which engine component stores oil for lubrication? - ✔✔Oil pan How many crankshafts are there in a V-8 automobile engine? - ✔✔ 8
What kind of wrench should be used to tighten engine components such as manifolds and cylinderheads? - ✔✔Torque
The starter gear disengages from the cars flywheel to avoid - ✔✔Damage to the starter Coolant flow through an engine is regulated by the - ✔✔Thermostat The engine flywheel bolts to the - ✔✔Crankshaft A torque wrench is used to tighten the bolt when -measured ✔✔The exact amount of force on the bolt has to be
Taps and dies are tools to - ✔✔Cut threads for nuts and bolts The type of pattern on metal is made by a process called - ✔✔Knurling Which of the following uses a penny system to specify its size? - ✔✔Finishing nail What is placed around a chimney to prevent leaks? - ✔✔Flashing Which tool is used to band large sections of sheet metal? - ✔✔Brake Self tapping screws are primarily used when fastening objects to - ✔✔Sheet metal Anchor bolts are used to hold the - ✔✔Rebar to the concrete The best saw for accurately cutting 3 inches off The length of a 2 x 8 x 18 inch piece of lumber is a - ✔✔Radial arm saw
Spaces are placed between slabs of concrete in city sidewalks to -contraction ✔✔Allow for expansion and
As part A moves to the left, gear C will turn - ✔✔In direction 1 A bell passes over a drum and it's ends are connected to springs. If the drum rotates in the directionshown and there is friction between the drum and the belt, then - ✔✔Both springs will get longer
