Answer:
Explanation:
There are many avenues of "current" research, so to spark.
- Improved efficiency and lower-cost photovoltaic cells,
- Improved, and lower cost, battery technology,
- Systems for harnessing tidal and wave power from the oceans,
- Molten salt energy storage for solar reflector arrays,
- Hydrogen-powered motors for vehicles,
- Gas storage (hydrogen) for transportation.
- Energy storage systems such as flywheels, molten salts, hydro power, etc., and
- Higher efficiency motors and electromagnetic devices
- Replacement of fuel-powered motors with electrical motors in transportation, including vehicles, ships, and planes.
Finding less expensive, and non-toxic materials is important. Less-enpense, and safer, alternatives to rare earth metals is sought.
That would be electromagnetic waves .
They are of very high energy.
The general formula for the alkenes is C nH 2n
Answer:
At a greater value of pH, [H⁺] is really low.
Solution with pH = 8 has more [H⁺] than solution at pH =12.
Explanation:
pH = - log [H⁺]
10^-pH = [H⁺]
At pH = 8, [H⁺] = 10⁻⁸ → 1×10⁻⁸ M
At pH = 12, [H⁺] = 10⁻¹² → 1×10⁻¹² M
In conclussion, at a greater value of pH, [H⁺] will be really low.
Solution with pH = 8 has more [H⁺] than solution at pH =12.
Answer: Option (b) is the correct answer.
Explanation:
When it rains, then mud in the backyards become wet. It is known that earthworms live inside earth and diffusion of oxygen gets slower through water than through air.
As a result, supply of oxygen to the worms decreases in wet mud hence, they come to the surface in order to breathe.
Thus, we can conclude that wet mud in the backyard most likely formed the earthworms.
