It is believed that a black hole
exists at the center of the Milky
Way Galaxy. While the black
hole is gigantic, we are not in
danger of being sucked in
because

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?