Figure i shows the position of the moon at local time 10: 00 p. m with respect to point a on earth’s surface. figure ii shows the position of the moon 24 hours later with respect to the same place. which phenomenon will a person at point a observe?
a) the moon rises at some time earlier each day than on the previous day.
b) the moon rises later each day than on the previous day.
c) the moon rotates counterclockwise about its own axis.
d) the moon rotates clockwise about its own axis.

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?