Explanation

Sugarcane is an important industrial crop of Pakistan.

It is primarily used for producing sugar and other by-products.

It is a significant part of the country’s agricultural sector.

Explanation

Human blood is divided into 4 main groups:

1. A
2. B
3. AB
4. O

These groups are determined by the presence or absence of specific antigens on the surface of red blood cells.

Explanation

The function used to get values into variables from the keyboard is scanf().

It reads input from the standard input (usually the keyboard) and stores it in the specified variables.

Explanation

The diamond symbol represents a decision in a flowchart.

It is used to indicate a point where the flow splits based on a yes/no or true/false condition.

Flow Chart List:

Explanation

The eight queens puzzle is a problem of searching.

It involves finding a placement of eight queens on a chessboard.

Such that no two queens threaten each other.

It requires exploring potential configurations to solve the problem.

Explanation

Boiling an egg involves a chemical change.

Because it alters the egg’s proteins, changing its structure and making it solidify.

Explanation

The types of pollution are:

• Air Pollution: Harmful substances released into the air, like carbon monoxide and sulfur dioxide.
• Water Pollution: Contamination of water sources with pollutants such as industrial waste and sewage.
• Land Pollution: Degradation of land through activities like deforestation and improper waste disposal.

Explanation

Hemodialysis is a treatment for kidney failure.

It involves filtering blood outside the body to remove waste.

Explanation

Oil and gas are not renewable energy sources. 

They are fossil fuels that deplete over time and take millions of years to form.

The renewable energy sources are:

• Water energy
• Wind energy
• Tidal energy
• Hydroelectric
• Ocean energy
• Geothermal energy
• Biomass
• Biogas

The non-renewable energy sources are:

• Fossil fuels or Hydrocarbon fuel (Oil, Natural gas, Coal)
• Nuclear energy

Explanation

1 calorie = 4.2 joules (exact value is 4.184 J), so 1000 cal = 4184 J.

1 kilocalorie (kcal) = 4184 joules, commonly used in food energy.