Explanation

The correct proverb is "A bad workman quarrels with his tools," meaning someone who blames equipment for poor work.

“Quarrels” agrees with the singular noun “workman.”

Explanation

Given the expression a² - 2a + 1 - b²:

Step 1: Factor the perfect square trinomial

a² - 2a + 1 = (a - 1)²

So, the expression becomes (a - 1)² - b²

Step 2: Apply the difference of squares formula

(a - 1)² - b² = (a - 1 - b)(a - 1 + b)

Explanation

• A program of activities designed to attain educational ends is called "Curriculum."
• It encompasses the planned experiences and content provided to learners in an educational setting.

Explanation

The line "Look on my works, ye Mighty, and despair!" is from the poem "Ozymandias" by Percy Bysshe Shelley.

It reflects the theme of the impermanence of power and pride.

Explanation

Nitric acid (HNO₃) is a strong inorganic acid commonly used in fertilizers and explosives.

The turmeric, tartaric, and citric acids are organic acids found in plants or fruits.

Explanation

Educational philosophy guides the setting of overall goals and purposes of education—what education aims to achieve.

It provides a foundation for making decisions about content, methods, and evaluation by clarifying these aims.

Explanation

Explanation

In a Star topology, each node connects to a central hub or computer.

This setup simplifies troubleshooting but depends heavily on the central device.

Explanation

"Aggravate" means to make a problem worse, which fits with water scarcity.

Global warming and climate change worsen water scarcity, not lessen or soothe it.

Explanation

=SUM(C1:C12) is the correct Excel formula to sum all values from cell C1 to C12.

The colon : denotes a continuous range of cells.