DP HEAD CONSTABLE AWO/TPO (GENERAL SCIENCE) QUIZ

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Question 1:

When copper reacts with moist carbon dioxide CO2 in the air, it forms a green coating of which one of the following compounds?

Question 2:

First artificial hybrid was obtained by crossing sweet william and carnation in 1717 by–

Question 3:

Ozone layer is present in which layer of the atmosphere?

Question 4:

Which of the following is an essential element used in the synthesis of proteins in plants?

Question 5:

Which of the following protects the body against infectious disease?