Explanation

• The philosophical foundation of curriculum is concerned with ideas.
• It involves examining fundamental beliefs, values, and principles that shape educational goals, content, and practices.
• These philosophical ideas influence the conception of knowledge, the nature of learning, and the purpose of education within the curriculum.

Explanation

Methane reacts with oxygen to produce carbon dioxide and water, releasing heat.

This is a combustion reaction, typical for hydrocarbons burning in oxygen.

Explanation

A vector is a DNA molecule used to carry a gene of interest into a host cell for cloning.

Common vectors include plasmids, bacteriophages, and cosmids.

Explanation

Let's denote the man's present age as x.

(x + 5) * 3 = 84

x + 5 = 84 / 3

x + 5 = 28

x = 28 - 5

x = 23

Explanation

The number must be 4-digit, so it cannot start with 0.

7890 is the smallest 4-digit number using digits 7, 0, 8, and 9 without leading zeros.

Explanation

"Had done" is past perfect, showing the work was completed before Aslam arrived.

"Came" is simple past, indicating the time Aslam came to see you.

Explanation

The sentence contrasts two opposite traits: being shy but sometimes outgoing.

This shows Salman’s personality can vary between reserved and sociable.

Explanation

"Well" describes how something is begun, modifying the verb "begun."

It tells us the manner of the action, which is the role of an adverb.

Explanation

A teacher’s personality helps build rapport and engage students effectively.

Relating well to the class creates a positive learning environment essential for success.

Explanation

The prefix dis- means "not" or "opposite of".

So disused means no longer used.