Options: the period in which the moon completes an orbit around the earth, the period in which the moon completes an orbit around the earth and returns to the same positions in the sky, the period of rotation of moon, None of the above
The term 'flora' in the context of natural vegetation refers to
Options: assemblage of plant species living in association with each other in a given environmental frame, plants of a particular region or period, listed by species and considered as a group, a large tract covered by trees and shrubs and its administration for assessing economic benefits, role played by species of animals in the maintenance of ecological balance
William Frederick is credited with the invention of the modern frisbee in the mid 1950's. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________?
Options: Pie maker, Owner of a pizza parlor, Student at Yale, Ceramic plate designer
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is