I WILL MARK BRAINLIEST. it's middle school science. PICTURE INCLUDED 5. Choose one region on the world map. How does the climate there differ during El Niño and La Niña?​
the regions are Europe, Africa, Asia, Australia, North America, South America

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.

d. mountainous regions