Explanation

Herbicides also known as Weedkillers.

It is used to control undesired plants.

Explanation

A metaphor is a figure of speech that directly compares two unrelated things without using "like" or "as."

In this sentence, "That story is music to my ear" compares a story to music, implying that it is pleasant or enjoyable, without using "like" or "as."

Explanation

After the 1857 War of Independence, the British adopted a brutal policy of repression, executing and punishing countless Indians.

In some instances, 100 Indians were killed in retaliation for the death of a single British soldier, highlighting the severity of British vengeance.

Explanation

Pragmatists believe in experiential learning, where students gain knowledge through practical application.

This method enhances problem-solving skills and critical thinking.

Learning by doing theory of education expounded by: John Dewey.

John Dewey was: American philosopher.

Explanation

Threadworms (pinworms) commonly cause itching around the anus, especially at night when female worms lay eggs.

This itching is the most common symptom, particularly in children.

Explanation

The correct phrase is "afraid of", which is always followed by a noun, pronoun, or gerund (like being dropped).

"Afraid of" is the standard prepositional phrase used to express fear about something.

Explanation

Discontinuous variation involves traits like blood group or tongue rolling, where individuals fall into clear, separate categories.

There are no intermediate states—either you have the trait or you don’t.

Explanation

Reforming is the process used to separate hydrogen from hydrocarbons (like methane or naphtha) by applying heat in the presence of a catalyst.

This is typically called steam methane reforming (SMR).

Explanation

"Taller" is the correct comparative form of the regular adjective "tall".

Regular adjectives typically form the comparative by adding “-er” (e.g., tall → taller).

Explanation

Given x = 1 is a solution, let's find 'a':

a(1)² + 5(1) - 3 = 0

a + 2 = 0

a = -2

The equation is -2x² + 5x - 3 = 0.

Let's factor or solve:

-2x² + 5x - 3 = 0

-2x² + 2x + 3x - 3 = 0

-2x(x - 1) + 3(x - 1) = 0

(-2x + 3)(x - 1) = 0

x = 1 (given) or x = 3/2

The other solution is x = 3/2.