In the atmosphere ultraviolet rays are absorbed by –
Most of the ultraviolet radiation in sunlight is absorbed by oxygen in Earth's atmosphere, which forms the ozone layer of the lower stratosphere. UV light is found in sunlight (where it constitutes about 10% of the energy in vacuum) and is emitted by electric arcs and specialized lights such as black lights. It can cause chemical reactions, and causes many substances to glow or fluoresce. Most ultraviolet is classified as non-ionizing radiation.
In the following questions, select the number which can be placed at the sign of question mark (?) from the given alternatives.
Mary is taller than Aayushi. Gunjan is taller than Aayushi but shorter than Shalini, who is taller than Mary. Who among them is the tallest?
In a certain code language, if storm = 15, apple = 6, virtue = 35, then cupboard = ?
Six boxes, labelled A, B, C, D, E and F, are arranged vertically from top to bottom. The top position is considered as the 1st position, whereas the bot...
Study the given arrangement of 2-digit numbers and symbols and answer the question that follows.
(Left) 65 67 87 86 and 43 32 37 @ 27% 29 76 71 4...
Which two signs should be interchanged to make the given equation correct?
36× 15 + 784 – 16 ÷ (45× 12) = 49
If a mirror is placed on the line AB, then out of the option figures which figure will be the right image of the question figure?
Study the following arrangement of numbers and symbols and answer the question that follows:
(all numbers are single digit numbers only)
3...
In each of the number-pairs, the second number is obtained by performing a certain mathematical operation on the first number. Three of the following pa...
