Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe select one:

a. is continuing at a constant rate and has done so since just after the big bang.
b. has now stopped and the universe will shortly begin to contract again toward a recollapse.
c. is accelerating (speeding up).
d. is decelerating (slowing down).

c. is accelerating (speeding up).

Explanation:

Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe is accelerating.

The findings of very distant supernovae by the Hubble Space Telescope indicated that the universe has progressed more slowly than it is now. In other words, due to gravity, the expansion of the universe was not decreasing, but is instead accelerating mysteriously. Scientist name this force as Dark energy. It a mysterious force still to be decoded by the scientist.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.