R Ram Sharma π Coach β 193.88K Points Q. If the surface air pressure is 1,000 mb, the air pressure at 1 km above the surface will be (A) 1,100 mb (B) 700 mb (C) 1,300 mb. (D) 900 mb ποΈ Show Answer π¬ Discuss π Share β Correct Answer: (D) 900 mb