what is the source of energy for the water cycle?

Correct Answer: geothermal energy

Explanation:

Based on conventionality in deriving energy, energy sources could be classified as

 

Conventional ::

coal, oil, hydro, nuclear, etc... sources which can be used up or exhaustible.

(and)

Non - conventional ::

solar, wind, tidal, geothermal, biogas, etc... sources which are not exhausted.

 

Among the given options, Geothermal energy is the alternative energy source among all the choices that are given in the question, that is exhaustible.

Correct Answer: Intersection

Correct Answer: doing more work in less time.

Explanation:

Doing more work in less time, results in an increase in power to do a work.

Correct Answer: the capacity of layers of metal ions to slide over the other

Correct Answer: An ignition safety switch is a safety device can shut off the engine if the operator falls off the PWC or out of the powerboat, or is otherwise thrown from the proper operating position How it works: It allows the engine of the vehicle to shut off or to be turned off immediately as it is to prevent further complications to happen as this is being used when an emergency is launched Where it is used: Most powerboats and PWCs come equipped by the manufacturer with an emergency engine cut-off switch

Correct Answer: Both A & B

Correct Answer: a pair of scissors

Explanation:

Any of the basic mechanical devices for applying a force are called simple machines.

There are 6 basic simple machines; the lever, the wheel and axle, the inclined plane, the wedge, the pulley, and the screw. Several of these simple machines are related to each other. But, each has a specific purpose in the world of doing work.

Correct Answer: The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration.

Explanation:

A physical hazard is defined as "A factor within the environment that can harm the body without necessarily touching it."

Vibration and noise are examples of physical hazards.

 

Physical hazards include but aren't limited to electricity, radiation, pressure, noise, heights and vibration amongst many others.

 

Correct Answer: The stability triangle is used to describe the movement of center of gravity of a load vehicle like trucks If the load is not balanced then it moves and may tip over it If you were to raise a lift truck up and look at its underside, you would see that the support points for the truck are located at points A, B, and C The triangle formed between points A, B, and C is called the Stability Triangle The lift truck will not tip over as long as the center of gravity remains inside the triangle The center of gravity is the point within a lift truck where there is equal weight all around it

Correct Answer: Aluminium

Explanation:

Materials that usually allow electricity to pass through them are called Good conductors of electricity.

Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

 

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...