Explanation

Water (H₂O) is an inorganic compound as it does not contain carbon-hydrogen (C-H) bonds.

Alcohol, chloroform, and ethane are organic compounds because they contain carbon atoms bonded to hydrogen.

Explanation

"Is he going to market?" is grammatically correct because:

It uses the correct helping verb "is" (for present continuous tense).

The structure follows "Is + subject + verb-ing?"

Explanation

"Payness" is not a correct word in English.

The correct noun is "pay" — meaning salary or wages.

Corrected sentence: "The workers in this factory receive their weekly pay every Thursday."

Explanation

If U is the universal set and B = {2,4,6,8}, then U – B gives the complement of B.

So, U – B = {1,3,5,7}, which are elements in U not in B.

Explanation

Explanation

Explanation

Explanation

Al-Qanun fi al-Tibb by Ibn Sina (Avicenna) is a five-volume medical encyclopedia.

It remained a standard reference in medicine for centuries in both the Muslim world and Europe.

Explanation

Given y ∝ x, we can write y = kx.

When x = 5, y = 210:

210 = k(5)

k = 210/5

k = 42

Now, when x = 2:

y = kx

y = 42(2)

y = 84

Explanation

Education Bureaus were established and attached to provincial education departments to help implement and monitor education policies.

They assist in planning, development, and administration of educational programs at the provincial level.