Explanation

"Angry with" is the correct preposition when referring to a person.

"Angry at" is used for situations or things.

Explanation

Chlamydomonas moves using two flagella, which help in swimming.

Flagella are whip-like structures that enable movement in water.

Explanation

The discovery of gold, copper, and silver deposits at Saindak was made in the 1970s.

Trial production started in 1995.

The Saindak Copper-Gold project, located in Chaghi, Balochistan, operates in collaboration with China.

Explanation

Explanation

Let's denote the two integers as x and y, where x > y:

Given x - y = 3 and x² + y² = 89.

From x - y = 3, we get x = y + 3.

Substitute x in the second equation:

(y + 3)² + y² = 89

y² + 6y + 9 + y² = 89

2y² + 6y - 80 = 0

y² + 3y - 40 = 0

(y + 8)(y - 5) = 0

y = -8 (not possible since y is positive) or y = 5.

If y = 5, then x = y + 3 = 8.

Check: 8² + 5² = 64 + 25 = 89.

The integers are 8 and 5.

Explanation

A scalar quantity has only magnitude and no direction.

Examples include mass, time, temperature, and speed.

Explanation

"From" shows the source or place where something was obtained.

So, "I bought some milk from the grocery store" is correct.

Explanation

DNA is the fundamental molecule that carries genetic information, forming the basis of heredity alongside chromosomes and genes.

It is the hereditary material in almost all organisms, encoding the instructions for building proteins and other important molecules.

Explanation

"And" is a conjunction because it is used to connect two actions or phrases in the sentence.

In this case, it connects "found the locker" and "opened it."

Explanation

Sabotage refers to the intentional destruction or damage of data or systems.

It involves deliberate harmful actions, unlike accidental data loss or hardware failures.