Engineers are looking for a new material to build an oil tanker . the material must be light weight , strong , and durable several engineers have developed some initial plans

i think they are all correct

explanation:

they seem good

d. air pressure decreases as altitude increases.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.