A. Oxygen
B. Cabon Dioxide
C. Silicon
D. Clay
Advertisement
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...
- Border line which separates outer space from Earth’s atmosphere is known as___________?
- A. Durand line B. Space line C. Venus line D. Karman line Submitted by: Rehana...
- Second layer of Earth’s atmosphere is__________?
- A. Stratosphere B. Mesosphere C. Troposphere D. Thermosphere Submitted by: Rehana Mallah...
- The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?
- A. Conduction of heat upward from a hot surface B. Convection from a hot surface C. Absorption of infrared energy that has been radiated from the surface D. Heat energy from the earth’s interior Submitted by: Mansoor Ul Haque...
- The earth’s atmosphere is divided into layers based on the vertical profile of __________?
- A. Air pressure B. Air temperature C. Air density D. Wind speed Submitted by: Mansoor Ul Haque...
- Which layer of the atmosphere lies close to the earth?
- A. Stratosphere B. Mesosphere C. Troposphere D. Thermosphere Submitted by: Ali Mallah...
Advertisement
The correct answer to the question: "About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?" is "Oxygen".