Correct Answer: Seafloor spreading hypothesis

Solution : The correct answer is the Seafloor spreading hypothesis.

The hypothesis propounded by Harry Hammond Hess in 1962 is known as the "seafloor spreading" hypothesis. This groundbreaking idea suggested that the oceanic crust is constantly in motion, being created at mid-ocean ridges and then

Correct Answer: 577

Solution : Given:
12 @ 2 = 145; 15 @ 2 = 226

The logic here is –
Like, 12 @ 2 = 145→12²+ 1 = 144 + 1 = 145
And, 15 @ 2 = 226→15² + 1 = 225 + 1 =

Correct Answer: 7 per cent

Solution : The correct answer is 7 per cent.

Tropical rainforests are the most diverse and productive land-based ecosystems. It is usually found in tropical regions that have an abundance of rain and sunlight. About 6–7 per cent of the total land area of

Correct Answer:

Solution : As we move from one box to another, there is a straight line in the middle of the box that increases by one. In the first box, the straight line was one. In the subsequent boxes, it increased to two, three, and four. Therefore, in the

Correct Answer: XY

Solution : The correct answer is XY.

Humans contain 23 pairs of chromosomes each cell, for a total of 46 chromosomes. The first 22 pairs of autosomes are the same in both males and females. The sex chromosomes are the 23rd pair, and they differ between males

Correct Answer: assured

Solution : The correct choice is the fourth option.

"Assure" means to tell someone something confidently to dispel any doubts, and in this sentence, its past form "assured" is the correct choice to maintain the tense consistency in the sentence. According to the context of the sentence,

Correct Answer: 12 cm

Solution : Given: Two circles of radii 3 cm and 8 cm, the distance between the centres = 13 cm and PQ is the direct common tangent.
We know,
The length of the direct common tangent of two circles = $\sqrt{d^2-(r_1-r_2)^2}$
Here, the distance between the

Correct Answer: 8 km/hr

Solution : Time taken to cover a distance of 12 km = 78 minutes
Two-thirds of the 12 km was covered at = 10 km/hr
Time = $\frac{\text{Distance}}{\text{Speed}}$
Two thirds of $12$ km = $12\times{\frac{2}{3}}$ = 8 km
Speed for 8 km distance cover = 10

Correct Answer: PQSR

Solution : The correct choice is the first option.

Explanation:

It is not uncommon
P. for parents and others in a particular animal
Q. group to teach their young through example how to
S. find food or water when it becomes scarce because
R. of drought

Correct Answer:

Solution : The opposite pairs of faces are as follows –

So, in the 3D view of dice, 
1. Each face out of three faces in 3D view should be from the pair.
2. Two opposite faces cannot appear adjacently in the 3D view of a folded dice.