Which of the following is used in Pencils?

A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous

Submitted by: Muhammad Ashhar khan

The element used in lead pencils is__________?
A. Zinc B. Lead C. Carbon D. Tin Submitted by: ABDUL HAYEE...
In a very low temperature which from the following will freeze at last?
A. River water B. Canal water C. Sea water D. Water in a lake...
Anti Diuretic hormone is secreted by one of the following glands?
A. Pituitary B. Pancreas C. Thyroid D. None...
Which of the following has the highest energy?
A. gamma rays B. X-rays C. Ultra-violet radiation D. radio waves Submitted by: Mansoor Ul Haque...
Which of the following is not a mammal?
A. Fish B. Cow C. Goat D. Whale Submitted by: ABDUL HAYEE...
Which of the following vitamin is known as Pyridoxine?
A. Vitamin B-1 B. Vitamin B-2 C. Vitamin B-6 D. Vitamin B-12 Submitted by: Malik Asghar Hussain...
Which of the following is not a chemical reaction ?
A. Burning of coal B. Conversion of water into steam C. Digestion of food D. Burning of paper Submitted by: Mansoor Ahmed Suhag...
Which of the following is called as Blue planet?
A. Mercury B. Earth C. Venus D. Neptune Submitted by: Wajid...
Which of the following is mainly used for light patrol engines ?
A. Kerosene oil B. Paraffin oil C. Heavy Fuel oil D. Gasoline Submitted by: Faheem Zaman Dhaunroo...
The term ‘white coal’ is sometimes referred to which of the following?
A. Geothermal energy B. Wind energy C. Hydroelectricity D. Biomass energy Submitted by: Sajjad Hussain Abro...