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ATQ,
Total age of 26 students = 15×26=390 Total age with teacher = 16×27=432 Teacher's age = 432−390=42 Final Answer: The teacher is 42 years old.
Which mineral is also known as 'plumbago'?
An element has an atomic number of 17 and a mass number of 36. How many neutrons are in its nucleus?
When acid reacts with metal carbonate, _______ is/are formed.
The Nuclear Fusion on the Sun’s surface result into formation of Atoms.
From which source is the purple dye known as litmus solution extracted?
What is the chemical formula of the mineral malachite?
Which fossil fuel is formed under earth by the decomposition of vegetable matter lying under water by anaerobic bacteria in the absence of oxygen?
Sphalerite is an ore/mineral of -
What term is used for atoms that have the same number of protons but different numbers of neutrons?
_______is the purest form of Carbon found in Nature.
