Astrophysicists explain that eventually the sun will swell to become a red giant, engulf the earth and "burn out" with all forms of energy dispersing in a final "heat death." Compared with conditions today, the entropy of the universe then will .

A. have increased greatly. B. have decreased greatly. C. remain the same because energy cannot be created or destroyed. D. have decreased minimally. E. not exist.

real, smaller and upside-down.   so the answer should be b.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it