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you serious? if ur not then... wow. anyways, you can use in it a sentence like this "the percentage of people with silver cars in our school is 20%" if that's what you mean
Approximately 80% of all vehicles in the world are LHD. While the majority of countries in the world drive on the right hand side of the road, the majority of actual cars are LHD.
In building slanted roofs.
That should be approximately 50%, considering that the Earth is round, and the Sun is almost a point-source at a fairly large distance (compared to the size of the Earth). This does not consider clouds or mountains blocking sunlight. Considering that we don't see the Sun exactly as a point, as well as atmospheric refraction, the actual percentage is somewhat larger - once again, if you don't consider mountains or clouds.
They are one in the same.
Roofs
Solar powered cars are cars that are powered by the sun. when the sun is not out the car will not start, when the sun is out, it will start!
What is the percentage of foreign cars in America
Beacause it is the place that is most exposed to the sun :-)
Solar panels
sun dried brick and roofs were tiles of stone
Your question makes no sense. Percentage of what
Expensive, and will save very little energy. Not practical.
Hybrid cars do not run on the power of the sun. Hybrid cars use a battery and gas to run.
A percentage is a relationship between two numbers. In this instance, the answer will depend on whether you compare the number of cars on California compared with: the number of cars in the US the number of cars in the world
Why on earth not? Cars are cars - if they are street-legal, the sun has nothing to do with when you can drive them.