Explanation

In a zero-order reaction, the rate of reaction is independent of the concentration of the reactants. 

The rate of the reaction is equal to the rate constant 𝑘

Explanation

The correct choice is "is watching" because it follows the present continuous tense, which is used to describe actions happening right now.

"She is watching the TV" indicates that the action is currently ongoing.

Explanation

Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids

Sound can not travel through vaccum 

Explanation

Sepulchral means غمگین

Sorrowful means غمگین

Explanation

The area of a parallelogram is given by the formula: Area = base × altitude.

Substituting the given values: 36 = base × 4, hence base = 36 / 4 = 9 meters.

Explanation

He goes to college daily in time.

The subject "He" is third person singular, so in the present simple tense, we add -s to the verb. 

The sentence describes a habitual action, so the present simple tense is appropriate.

Explanation

Chile saltpeter is the common name for sodium nitrate (NaNO₃).

It is found naturally in Chile and Peru.

It is used in fertilizers and explosives.

Explanation

Explanation

When two bodies are moving in opposite directions, their velocities are added to find the relative velocity.

Let's say the velocities of the two bodies are v1 and v2.

Relative velocity = v1 + v2

Since both velocities are non-zero and in opposite directions, the relative velocity will be greater than the absolute velocity of either body.

So, the statement "Relative velocity > Absolute velocity" is true.

Explanation