"Economical" vs "Ecological"

[Ilovepsycho]

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1. Your car is very _____. It hardly seems to use any petrol at all.

a. attractive
b. economical
c. commercial
d. ecological
e. eccentric

I am confused between 'b. economical' and 'd. ecological'.

To begin with, I'd like to ask you that exactly what the sentence 'It hardly seems to use any petrol at all.' means. I think that It means 'The car uses no petrol,' or is my thinking wrong? Could you tell me that correctly?

Secondly, if my thinking is correct, will 'd. ecological' be correct? If it's not correct, is it wrong for me to think that 'd. ecological' is almost the same as 'environmentally friendly'? Please tell me why?

[Kitosdad]

'The car uses no petrol,'

Economical, meaning the car is very cheap to use. It returns good mileage for the amount of petrol it consumes.

Ecological relates to the environmental pollution. If the car emits a lot of smoke, then it can be said to be ecologically inefficient.

Kitos.
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[Ilovepsycho]

Hello, kitosdad.
According to your explanation, is 'd. ecological' also correct? because the car uses no petrol, or it's possible to think that the car is hybrid type and therefore is environmentally friendly.
I am really confused. Please give me more explanations.

[Shyone]

'It hardly seems to use any petrol at all.'

This means the car uses very little petrol, therefore it is economical.
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[Kitosdad]

ILP, I think Andrea has furnished you with the answer I would have given.

Economical. logically means very cheap to run. No mention was ever made of the car being a hybrid vehicle.

Kitos.
_________________
Keep it simple ... Keep it interesting.