question: this is why those who manufacture, supply, consume and finally dispose of products should bear the environmental costs.
Capitalize this past sentence correctly.
A: This is why those who manufacture, supply, consume and finally dispose of products should bear the environmental costs.

question: he thought that it could be because the earth is round, and then he could quite carefully calculate how big the earth is.
Capitalize this past sentence correctly.
A: He thought that it could be because the earth is round, and then he could quite carefully calculate how big the earth is.

question: clicking new images when the memory is almost full on sandisk micro sd card can possibly lead to loss of media files
Capitalize this past sentence correctly.
A: Clicking new images when the memory is almost full on SanDisk Micro SD card can possibly lead to loss of media files