The color of blood is red due to __________?
Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue
The section GK MCQs consists of World Geography, Atmosphere, Science & Literature, events Mcqs, Current Affairs Mcqs, Pakistan Affairs Mcqs and International Organizations. Similarly, MCQs over Global Issues that include International Security, International Political Economy and MCQs of Human Rights etc are also here.
These general knowledge questions are very important for all type of exams conducted by FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEAand other testing agencies of Pakistan.
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