Question
How does air pollution affect living organisms?
>1. Sulphur dioxide irritates the respiratory tissues. 2. Nitrogen oxides, especially NO2, can irritate the lungs. 3. Suspended particles in the air aggravate our respiratory tract, leading to bronchitis and asthma. 4. Many volatile organic compounds and toxic particulates can cause mutations, reproductive problems or cancer. Select the correct answer using the codes given below.Solution
The correct answer is D
Solve for x in the equation: 3(x + 2) + 2(2x - 5) = 5x + 9
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Given a triangle with two sides measuring 12 cm and 16 cm, which of the following cannot be a possible length for the third side?
The mean age of 30 students was calculated as 15 years. However, it was later discovered that one student's age was mistakenly entered as 15 years inste...
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If a = 32, b = c = 31, then find the value of a 3 + b 3 + c 3 – 3abc.
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
105, 111, 123, 141, ?, 195
Let {x + (1/x)} = 4, then Determine the value of {x² + (1/x²)}
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