More than 50.
False. The upper mantle is believed to be composed primarily of peridotite.
true
Twister was patented by Charles F. Foley and Neil Rabens in 1966. There was another guy who claimed to have created it, but that is believed to be false.
It is false that hydro is the least widely used. There are many renewable energy sources, and hydro power is one of the most commonly used, with many installations all over the world. Unconventional renewable power sources that have been used include such ideas as extracting energy from the impact of people's feet as they walk on sidewalks, which is just one of many examples of sources less commonly used than hydro.
For the most part that is false. The major exception to this rule would be nuclear power. The fuel sources available for this form of power should last longer then the planet. That is not to say that there are not other issues involved with the use of this form of power.
yes
false
Some sources say 5, some say as many as 17. Hard to really tell.
False
An example of a false statement about water might be: All water is unhealthy for you. - That is false; humans need water to survive. However, a true statement (an opposing statement) would be: If water is polluted or contaminated, it may be very unhealthy to drink. But if no other source of water is present, humans would still need to drink the polluted water.
While humans are the most studied when it comes to dreaming, some studies suggest that other mammals such as rats and dogs also experience a form of dreaming during their sleep. Although the exact nature of animal dreaming is still debated, there is evidence to suggest that dreaming might not be exclusive to humans.
False (A+)
they believed in the sun go do therefore it was the false gods they had believed in
That is what they believed but believed means it might be true or false.
False.
false
FALSE.. they are great sources of stored energy!