Explanation

"May" is used to express possibility, indicating that there is a chance of rain.

The sentence suggests uncertainty, and "may" conveys that possibility.

Explanation

AFFLUENT means امیر

Poor means غریب

Explanation

SUBSTANDARD means غیر معیاری

Inferior means کمتر

Explanation

A light microscope can magnify up to 1000x (typical maximum), resolving structures as small as 0.2 micrometers.

This is ~1000x sharper than the naked eye (which resolves ~0.2 mm).

Explanation

Add and Added show a change from present to past tense.

Say and Said also represent present to past tense, matching the same pattern.

Explanation

Cohesion is the attractive force between molecules of the same substance.

It is strongest in solids due to tightly packed molecules.

Explanation

Equisetum is commonly called horse-tail due to its brush-like appearance.

It belongs to Pteridophytes.

It is a living fossil.

It is found near wetlands.

Explanation

Hirudinaria is a genus of leeches, which are segmented worms.

Leeches belong to the phylum Annelida, known for segmented bodies.

Explanation

Parasites are classified as ectoparasites (living on the surface) and endoparasites (living inside the host).

Both types represent different forms of parasitic symbiosis with their hosts.

Explanation

Aldehydes and ketones contain a polar carbonyl group (C=O) which is susceptible to nucleophilic attack.

They commonly undergo nucleophilic addition reactions, a key feature of their reactivity.