equipment will replace equipments because –
equipment is an Uncountable Noun and the plural form is also equipment.
A single item is referred to as a piece of equipment.
Look at the examples given below :
We need some new kitchen equipment.
The athletes keep their equipment in the locker room.
Hence, were the only equipment is the right usage.

Correct Option: B

equipment will replace equipments because –
equipment is an Uncountable Noun and the plural form is also equipment.
A single item is referred to as a piece of equipment.
Look at the examples given below :
We need some new kitchen equipment.
The athletes keep their equipment in the locker room.
Hence, were the only equipment is the right usage.

I go to temple will replace I go to the temple because the (Def. Art.) is not used with places like school/University/Prison/hospital/church unless they refer to a particular one.

Correct Option: A

I go to temple will replace I go to the temple because the (Def. Art.) is not used with places like school/University/Prison/hospital/church unless they refer to a particular one.

hardly any effort will replace hardly no effort because –
hardly (Adv.) : almost no; almost not; almost none Hardly, scarcely, etc. are negative words and should not be used with not or other negatives.
Look at the examples given below :
I can’t hardly believe it. (×)
I can hardly believe it. ( )
I did not hardly know him. (×)
I hardly knew him. ( )
Hence, with hardly any effort at all is the right usage

Correct Option: C

hardly any effort will replace hardly no effort because –
hardly (Adv.) : almost no; almost not; almost none Hardly, scarcely, etc. are negative words and should not be used with not or other negatives.
Look at the examples given below :
I can’t hardly believe it. (×)
I can hardly believe it. ( )
I did not hardly know him. (×)
I hardly knew him. ( )
Hence, with hardly any effort at all is the right usage

No error.

Correct Option: D

No error.

temperature and chemical balance will replace temperature, chemical balance because –
We are talking about three conditions.
Hence, plants are soil, temperature and chemical balance or amount of moisture is the right usage.

Correct Option: C

temperature and chemical balance will replace temperature, chemical balance because –
We are talking about three conditions.
Hence, plants are soil, temperature and chemical balance or amount of moisture is the right usage.