A. Oxygen
B. Cabon Dioxide
C. Silicon
D. Clay
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Related Mcqs:
- The most abundant element in the Earth’s crust is __________?
- A. Oxygen B. Hydrogen C. Carbon Dioxide D. Silicon...
- Which of the following elements is not present abundantly in earth’s crust ?
- A. Silicon B. Radium C. Aluminum D. Carbon...
- The second most abundant metal found in the earth’s crust is_____________?
- A. Silicon B. Aluminium C. Calcium D. Sodium Submitted by: Ashfaque Ali Khoso...
- The earth surface & crust constantly evolving due to ?
- A. Rotary cycle B. Normal cycle C. Rock cycle D. Change cycle Submitted by: Mansoor Ahmed Suhag...
- The lowest region of the earth’s atmosphere comes between the earth and stratosphere. what is this region’s name?
- A. Ionosphere B. Troposphere C. Stratosphere D. Mesosphere Submitted by: Ashfaque Ali Khoso...
- The sky appears blue because the earth’s atmosphere __________?
- A. Scatters blue light B. Reflects blue light C. Transmits blue light D. Has actual blue cover...
- Which layer of the atmosphere reflects radio waves back to the earth’s surface?
- A. Troposphere B. Stratosphere C. Ozone layer D. Ionosphere Submitted by: Aamir Hussain Laghari...
- The coldest region of the Earth’s atmosphere is__________?
- A. Exosphere B. Thermosphere C. Stratopause D. Mesopause Submitted by: Fida Ur Rasool...
- Which layer of the atmosphere lies close to the earth?
- A. Stratosphere B. Mesosphere C. Troposphere D. Thermosphere Submitted by: Ali Mallah...
- Which planet is losing its atmosphere at faster than the earth?
- A. Mecury B. Venus C. Mars D. Jupiter Submitted by: Abid Otho...
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The correct answer to the question: "About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?" is "Oxygen".