Arts (English Medium) इयत्ता १२ - CBSE Question Bank Solutions

Which of the following is a conventional source of energy?

‘Pesticides are chemical compounds designed to kill pests. Many pesticides can also pose health risks to people even if exposed to nominal quantities.’

In the light of the above statement, suggest any two traditional methods for replacement of the chemical pesticides.

______ is not the strategy for Sustainable Development.

Explain how Bio-composting can be helpful in achieving the objectives of sustainable development.

"Serious concerns over the climate change is taking over the attention of the world."

In the light of the above statement and image, discuss any two strategies to tackle this global concern of Environmental degradation.

Explain the difference between "Shift of Supply Curve" and "Movement along Supply Curve". State one factor responsible for each. Use diagrams. 

When does 'shift' in supply curve take place?

What is 'change in supply'? Explain the effect of tax imposed on a good on the supply of the good.

Which of the following does not cause shift of supply curve of a good?
(Choose the correct alternative)
(a) Price of input
(b) Price of the good
(c) Goods and services tax
(d) Subsidy

Choose the correct answer from given options
If the supply curve is a straight line parallel to the vertical axis (Y-axis), supply of the good is called as _________.

Explain the geometric method of measuring price elasticity of supply. Use Diagram.

The price elasticity of supply of a good is 0.8. Its price rises by 50 percent. Calculate the percentage increase in its supply.

What is the law of diminishing marginal product?

Choose the correct alternative from given options:
The average product curve in the input-output plane, will be ____________.

Explain whether the statement is true or false with reasons.

 Average product curve and Marginal product curves are 'U-shaped' curves.

When does a production function satisfy constant returns to scale?

When does a production function satisfy increasing returns to scale?

When does a production function satisfy decreasing returns to scale?

What does the third level refer to?

Would Charley ever go back to the ticket-counter on the third level to buy tickets to Galesburg for himself and his wife?