Explanation

Pressure exerted by the material on a smooth surface is not a factor affecting the resistance of a material.

The resistance is influenced by the type of material, temperature, and cross-sectional area.

Explanation

Explanation

Explanation

Explanation

To calculate the population density, you will divide the population by the size of the area.

formula:

Population Density = Number of People/Land Area.

The unit of land area should be square miles or square kilometers.

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ND1-2-2023

Explanation

Milk is approximately 87% water and 13% solids.

The solids include fats, proteins, vitamins, and minerals.

Explanation

Blood pressure is the force exerted by blood against the walls of arteries.

It reflects how hard the heart is working to pump blood through the arterial system.

Explanation

• The most abundant component in Earth's atmosphere is nitrogen, making up about 78% of the air.
• The second most abundant gas is oxygen, which makes up about 21% of the air.
• Hydrogen and carbon dioxide are both present in the air, but in much smaller amounts than nitrogen and oxygen.

Explanation

Amylase is an enzyme that catalyzes the hydrolysis of starch into sugars.

All amylases are glycoside hydrolases.

It is used in breadmaking.

Additional information:

Protease: 

is an enzyme that catalyzes proteolysis.

Lipase:

Is an enzyme that catalyzes the hydrolysis of fats.

Peptidase:

is an enzyme that breaks down peptides into amino acids.

Explanation

Washing soda is also known as sodium carbonate (Na2CO3).

It is used to remove permanent hardness of water.

Permanent hardness is caused by the presence of magnesium and calcium sulfates or chlorides in water, which cannot be removed by boiling.

Washing soda helps to precipitate these minerals, making the water softer.