A. Oxygen 65%
B. Calcium 75%
C. Hydrogen 10%
D. Carbon 18%
Submitted by: Syed Nizakat Ali Shah
Correct Answer: Hydrogen 10% ✔
Last Updated: March 08, 2022
Related MCQs
- Which element has the second most % in human body?
- Which element has the most % in human body?
- A fresh egg when placed in salt water will __________ ?
- JAUNDICE is the disease of __________?
- Maximum biological damage is caused by __________?
- Which diagnostic scan gives some of the highest radiation doses in diagnostic radiography ?
- The importance of perspiration is to __________?
- Which medicine can be used to make urine red in colour?
- Velometer is used to measure?
- Water soluble vitamins are released by__________?
- Which hormone is necessary for the production of milk in the mother’s breast?
- The spray bottles used as window or household cleaner or perfume spray works on: __________?
- Selenology is the study of __________?
- 1 Carat is equal to __________?
- What is unit of Pressure?
- What divides the Earth into the Northern and the Southern Hemispheres?
- Triple point of water is _________?
- Chili contain which vitamin?
- What is ‘Tokamak’ ?
- Stars in the sky appear to twinkle due to _________?
- Nowadays Milk is not considered balanced diet because it is lacking in __________?
- Nearest star to sun is: __________?
- Pure limestone is called _______?
- A bird sitting on a high tension electric wire does not get electrocuted because:
- The color which we see when our eyes are closed?
- Which metal pollute the air of a big city?
- Potassium nitrate is used in__________?
- The gases used in different types of welding would include:__________?
- Which of the gas is not known as green house gas?
- Which of the following is a tissue?
- The chemical name of chalk is
- 1 tonne = _____ kg?
- Main use of salt in diet is to : __________?
- Rainbow is seen after rain because of hanging molecules of water which act as __________?
- To measure the speed of an approaching car a police officer shines?
- A photostat machine works on __________?
- The owl can see most clearly in total darkness because:
- The audio signals of TV are __________?
- The source of the Sun’s energy is the process of __________?
- The snow on the mountains does NOT melt all at once when it is heated by the sun because:
- What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?
- Soap is prepared by boiling caustic soda with __________?
- Milk tastes sour when kept in the open for sometime due to the formation of __________?
- Which of the following statements is true when we see ‘rainbow’ ?
- Rain drops fall from great height Which among the following statements is true regarding it?
- Why the needle of iron swims on water surface when it is kept gently ?
- Which among the following waves is used for communication by artificial satellites ?
- Erythrocyte is another name for a __________?
- Hydrology is the study of __________?
- Which of the following is good conductor of heat but bad conduct of electricity?
- Kilowatt-hour is a unit of__________?