Explore topic-wise MCQs in Biology Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of these components have the least percentage by weight in the Earth’s crust?

A. Oxygen
B. Sodium
C. Magnesium
D. Nitrogen
Answer» E.
2.

What percentage of the Earth’s crust is Sulphur?

A. 0.14
B. 46.6
C. 0.03
D. 2.8
Answer» D. 2.8