Mars and Earth are very different because Group of answer choices Mars greenhouse effect is too strong Mars is too far from the Sun Mars mass is too small to retain an atmosphere like Earth Mars had too many impacts from asteroids which evaporated all the water

Yes the answer is true. How ever, you can add a few points like:

Explanation: If nuclear bombs were blown at the end of mars ploes, it could change its weather.(Elon Musk). It is also observed that there is higher oxygen levels in the northern parts of mars.(information from Uae mars probe). So yes you are right but there are /can be a few similarities between earth and mars.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.