Firstly, it's important to note that science exams, especially for UPSC, cover a wide range of topics from various branches of science. Here are some main questions that are commonly asked in science exams:
- Physics:
- What is the difference between scalar and vector quantities?
- Explain the laws of motion proposed by Sir Isaac Newton.
- Define the concept of work and energy and explain the relationship between them.
- Chemistry:
- What is the difference between an element and a compound?
- Explain the periodic table and how it is organized.
- Define the concept of chemical bonding and discuss the different types of chemical bonds.
- Biology:
- What is the basic unit of life and how does it function?
- Explain the process of photosynthesis and its importance in the ecosystem.
- Discuss the different systems of the human body and their functions.
- Earth Sciences:
- What is the theory of plate tectonics and how does it explain the movement of Earth's crust?
- Define the concept of weathering and erosion and discuss their impact on the environment.
- Explain the water cycle and its significance in the Earth's ecosystem.
These are just a few examples of the types of questions that may be asked in science exams. It's important to study and understand the fundamental concepts of each branch of science in order to effectively answer these questions.