Explanation

“Call me as soon as possible” is the most natural and correct form in everyday English.

It’s direct, clear, and fits the urgency of the situation.

Explanation

The action was either just or unjust.

This sentence correctly uses the correlative pair "either...or" for two alternatives.

It is grammatically complete and logically clear.

Explanation

Karl Marx (1818-1883) was a philosopher, author, social theorist, and an economist.

He is famous for his theories about capitalism and communism.

Explanation

Explanation

Sets that have the same number of elements (cardinality) are called equivalent sets.

They may have different elements but the same total count.

Explanation

The verb prefer is correctly followed by "to" when comparing two things.

"An apple" and "a banana" are used with correct articles based on pronunciation.

Explanation

The correct phrase is "We should not swim after a meal" as it's advised to wait before swimming.

"After" indicates the time following an event.

Explanation

A solar year is approximately 365.25 days, which accounts for Earth's full orbit around the sun.

The extra ¼ day each year is why we have a leap year every 4 years.

The solar year 365 days 5 hours 48 minutes 46 seconds, also called tropical year, or year of the seasons.

Explanation

A lunar year (based on 12 lunar months) is approximately 354 days, while a solar year is about 365 days.

Therefore, the lunar year is shorter by about 11 days than the solar year.

Explanation

Sindhu refers to the Indus River and its surrounding region, traditionally associated with seven rivers.

The word Hindu was later derived by Persians from Sindhu to describe the people living beyond the Indus.