Me which of this options are falsifiable and which are non- falsifiable ?

i have name them with numbers so you can me in advance

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big