Question
Ocean acidification, caused by the absorption of excess
carbon dioxide by the oceans, possess a significant threat to marine ecosystems. Given below are sentences with an error in each. The error is in one part of the sentence. Below each sentence are given the options containing the parts of the sentences. Choose the option which contains the error. If no error, choose option e ‘No error’.Solution
‘The sentence requires a correct verb ‘poses’ that means to present a danger or a threat. The verb in the sentence that has been used ‘possess’ is inaccurate as it means ‘to own’.
The area of a square is 196 cm2 which is 68 cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length o...
A rhombus has its diagonals in the ratio of 7:9, with their difference being 10 cm. Find the area of the rhombus.
A solid sphere is melted to form 8 smaller spheres of equal radius. Find the radius ratio (small : original).
In what time would a Cistern be filled by three pipes whose diameter are 2cm, 8/3 cm and 4cm running together, where the largest pipe alone fill it in 1...
The sum of the radius and height of a cylinder is 42m. The total surface area of the cylinder is 5544 m². What is the volume of the cylinder?
Which of the following two will provide more volume?
I) A cuboid of edges 6 cm, 7 cm and 8 cm
II) A cube of edge 7 cm
The total surface area of a cube is given as 216 cm². The radius of a cone is twice the length of the edge of the cube, and the height of the cone is 1...
Bala travels first one-third of the total distance at the speed of 10 km/h and the next one-third distance at the speed of 20 km/h and the last one – ...
A right circular cylindrical tank of radius 'R' meter and height 'R + 7' meter contains oil. The entire quantity of oil is taken out from the cylindric...
The perimeter of a rectangle of length 2(x + 2) cm and breadth 2(x + 4) cm is double the perimeter of a square of area 256 cm². Find the area of the re...