The answer is Object 3.
Atoms in a solid are locked and can only vibrate in one place. So, it can’t slide past each other or spread out to fill the containers (objects 1 & 4 are out). Viscous means having a thick and sticky consistency between solid and liquid, so I’m guessing it’s something like glue or syrup, which is not a solid. That leaves Object 3 left.
Lower the usage of industrially based travel, and perhaps more of the more environmentally-friendly public transportational methods, walking, or simply it the usage of carpooling systematic methods.
The answer would be B, chloroplast :)
