what causes the ability to move about from place to place

1. The parents of these students do not place much importance on education. At the least provocation, they take the children out of school. Girl students are especially vulnerable. For them the household chores - carrying water, looking after siblings and marriage are considered more imp..

Shortening of the eyeball, that is, the eyeball becomes smaller Increase in focal length of the eye lens Let us now see how this defect is rectified. A long sighted eye forms image of a nearby object behind the retina. Thus, long sightedness is due to the decreased converging power of the le..

Solar energy is responsible for the blowing of wind. The intensity of sun-rays is stronger near the Equator than at the Polar Regions. Due to unequal heating of the earth's surface, cooler air from the Polar Regions flow towards the equatorial regions to fill the space created by the hot rising a..

Cause of Periodicity of Elements - The modern periodic table is based on the electronic configuration of the elements. The properties of an element are determined largely by the electrons in its outermost or valence shell. Valence electrons interact with other atoms and take part in all c..

Sam is at the point B. He moves 4 units up. Identify the ordered pair that represents Sam's place now. => (2, 9) or (9, 2) or (6, 5) or (5, 6)..

Putting w = 0, a = 0 and -b in the place of b in equation (1-38), we get The apparent frequency will be greater than the actual frequenc..

In 1936, Neils Bohr suggested that the nucleus might be like a droplet of dense liquid, composed of sub droplets of protons and neutrons. A uranium nucleus is spherical in shape. In this spherical nucleus, protons and neutrons are together because of the delicate balance existing between the nucle..

In a game, a target is moving randomly on a vertical screen of length 8 m and height 9 m. A light source placed at 2 m in front of the board can be turned on with a switch. If the target is found with in the lighted portion of the screen a prize is won. Light is passed through a..

Charles is moving to a new place. He packs his luggage in two cartons. Carton-A weighs 3 33 of an lb and carton-B weighs 14 33 of an lb. How much does carton-B weigh more than carton-A ? => 17 33 lb or 10 33 lb or 11 33 lb or 42 33 lb..

Animals are different from plants because of their ability of locomotion. This ability probably developed as they have to search for food, unlike the plants that are autotrophic. Since they move from place to place, the animals have to continu..