Class 10 Science questions for CBSE

According to Fleming's Left Hand Rule, which of the following represents the direction of the force on a current-carrying conductor placed in a magnetic field?

A solenoid creates a magnetic field when current flows through it. What happens if the current direction is reversed?

When the resistance of a conductor is increased, which of the following occurs at a constant voltage?

In a circuit, if the potential difference across a resistor is doubled while maintaining the same resistance, what happens to the current?

Which of the following components is classified as abiotic in an ecosystem?

If waste is added to a lake, which of the following is a likely consequence?

Discuss the various life processes that are fundamental to the survival of living organisms. In your answer, elaborate on the significance of nutrition, respiration, and excretion, and describe how these processes contribute to maintaining homeostasis. Provide examples of different nutritional methods such as autotrophic and heterotrophic nutrition, as well as the types of respiration observed in organisms.

Discuss the various life processes that are essential for maintaining the organization and functioning of living organisms. Include detailed descriptions of nutrition, respiration, and excretion, highlighting their interconnections and significance in the overall homeostasis of the organism. Provide examples of different nutritional modes such as autotrophic, heterotrophic, saprophytic, and parasitic nutrition, and explain how these processes work together to support life.

Explain the process of aerobic respiration in humans and its significance compared to anaerobic respiration.

Describe the role of digestive glands in the human alimentary canal and their importance in digestion.

List the factors affecting photosynthesis and explain how one of these factors influences the rate of photosynthesis.

What are the main life processes that are essential for the survival of living organisms?

In which part of the human respiratory system does gas exchange occur?

What is the primary function of the liver in the human digestive system?

Which factor does NOT affect the rate of photosynthesis?

Which of the following best describes life processes in organisms?