Question
Which of the following destroys the ozone
layer?Solution
Chlorine, primarily from man-made chemicals like chlorofluorocarbons (CFCs), is a major contributor to ozone layer depletion. These compounds release chlorine atoms when they break down in the stratosphere, leading to the destruction of ozone molecules.
Let vector r lie in the plane of p = i + j and q = j + k, and be such that r is perpendicular to p and satisfies r · q = 2. Then, the value of the dot ...
A frustum of a cone has a lower base radius of 5 cm, an upper base radius of 3 cm, and a height of 4 cm. What is the volume of the frustum?
Ajay and Bijay can individually complete a task in 18 days and 24 days, respectively. If they work together to finish the task an...
A family spends 40% of their monthly income on rent, 20% on groceries, and 15% on utilities. If they save ₹5,400 after these expenses, what is their t...
In an election between two candidates, winner got 40% of total valid votes. If total number of votes cast were 1700 out of which 10% were invalid, then ...
If sin x + sin 2x = 1 and cos x + cos 2x = 0, find x.
In a survey, 60% of the participants are women and 40% are men. Among the women, 50% are employed, while 70% of the men are employed. If there are 200 p...
The ratio of two numbers is 4:8 and their LCM is 64. The numbers are:
Aman borrowed Rs. 56000 at 11% p.a. simple interest for 2 years. He immediately invested the entire amount at 14% p.a. simple interest for the same dura...
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