dra level 3

Levels of Biodiversity - Biological diversity includes 3 hierarchical levels. a) Genetic diversity b) Species diversity c) Community and ecosystem diversi..

Globally sea levels have risen 4-8 inches over the last century. The high temperatures have already started melting polar ice caps sea icebergs and glaciers. This has released enormous amount of water. Warmer temperatures also heat water and make it expand; thus ocean levels ne..

Select the correct representation of a 95% confidence level case. => figure - 1 or figure - 4 or figure - 3 or figure - 2..

Question: Noise levels in our city are at an alarming peak leading to anxiety, stress and even deafness. Taking ideas from the graph below and your own ideas, write an article about noise pollution and its effects for a children's magazine, 'Your City and You'. You are Aruna Srivast..

The number of cars per floor in a multi-level parking lot are shown in the line plot below. Find the total number of cars parked in the 3 rd and the 6 th floors. => 8 or 11 or 6 or 10..

An experimenter decided to give three different levels of antibiotic to rats to see if any particular dosage is more effective. Group 1 has low-level antibiotic; Group 2 has medium-level antibiotic; and Group 3 has high-level antibiotic. The life sp..

A conical tank is resting on its base, which is at ground level and its axis is vertical. The radius and the height of the tank are 6 feet and 12 feet respectively. Find the work done in filling the tank with water pumped in from ground level. ( r = 62.4 lb/ft 3 ) => 1..

Radio tubes manufactured by a company are expected to have a mean lifetime of 400 hours, with a standard deviation of 30 hours. Random samples of 10 tubes were tested. It was found that 3 tubes had a lifetime of 398 hours, 5 of them had a lifetime of 410 hours and 2 had a lifetime of 400 ..

The base radius of a right circular cylindrical oil container is 40 m. Oil is drawn from it at the rate of 64000 m 3 per minute. Find the rate at which the oil level falls in the container. => 1 π m/min or 4 0 π m/min or 6 4 0 π m/min or 1 6 0 π m/min..

The base radius of a right circular cylindrical oil container is 90 m. Oil is drawn from it at the rate of 729000 m 3 per minute. Find the rate at which the oil level falls in the container. => 9 0 π m/min or 7 2 9 0 π m/min or 8 1 0 π m/min or 1 π m/min..