Explanation

Root hairs are long, thin, and tubular structures that increase the surface area of the root.

It allowing for a greater rate of absorption of water and minerals from the soil.

Explanation

A hypothesis is a testable prediction that explains a phenomenon or solves a problem.

It's a crucial component of the scientific process, as it provides a framework for testing and experimentation.

Explanation

A spring balance is a device used to measure the weight of an object.

It consists of a spring that is stretched or compressed by the weight of the object, and a pointer or dial that indicates the weight.

Explanation

The vertical component of the force is:

Vertical component = Force × sin(angle)

= 15 N × sin(60°)

= 15 N × 0.866

= 13 N

So, the vertical component of the 15 N force at an angle of 60° is approximately 13 N.

Explanation

• The molarity (M) of a solution represents the number of moles of solute per liter of solution (not per liter of water).
• A lower molarity indicates a more dilute solution, which means it contains more water.

Explanation

The molar mass of H2SO4, also known as sulfuric acid, is 98 grams per mole (g/mol).

Explanation

• Deficiency of Vitamin K causes anemia.
• More specifically, it leads to impaired blood clotting, which can result in excessive bleeding.

Explanation

• When a saturated solution is diluted, the concentration of the solute decreases, and the solution becomes unsaturated.
• This means that the solution can still dissolve more solute than it currently contains.

Explanation

• An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, in a solid state.
• The components of an alloy are typically mixed when they are molten, and then solidified to form a uniform solid solution.

Explanation

• The freezing point of a liquid can be affected by pressure.
• This is known as the "pressure melting point" effect.
• As pressure increases, the freezing point of a liquid can also increase.