What is the biggest barrier to the use of renewable energy in the united states?

reliability and consistency

citizen opposition to negative environmental impact

limited transmission capacity to deliver the energy to the consumer

limited renewable resources

Most energy in an ecosystem comes originally from_

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.