Question
Which element has the highest percentage in the Earth's
crust?Solution
Oxygen makes up about 47% of the Earth's crust by weight, making it the most abundant element, followed by silicon at 27%. These two elements combine to form a majority of the Earth's minerals.
Which of the following is a macronutrient?
Which of the following gas is used in anesthesia?
How many chromosomes are present in a typical human cell?
Which among the following are present in higher amount in hard water?
1 mole of carbon atoms = ______ g of carbon atoms
Proteins are assembled from how many amino acids?
Marbles come under which category of rockes?
The force which opposes the relative motion between different layers of liquid or gases is called –
Which one of the following diseases in humans can spread through air?
The dimensional formula of angular momentum is:
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