Accepted Answer
-- The gravitational force that you feel when you stand on the surface of a planet depends on the planet's mass and size. It has nothing to do with the planet's orbit. (Of course,"size" is also related to the planet's mass, density, and surface area.)-- One possible cause of deforestation is the removal of trees without adequate replanting.-- According to Hubble’s Law, the farther away a galaxy is, the faster it is moving away from us-- Electromagnetic energy can be defined as energy that moves at the speed of light. If you conduct experiments to determine whether the electromagnetic energy is moving in the form of particles or waves, you find that it behaves as both.
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