Aspace craft left earth to collect soil samples from mars which statement is true about the strength of earths gravity on the moving spacecraft? will it decrease, will it increase, it remains the same, or it doesn't affect the spacecraft

correct option is -- it will decrease

Explanation:

correct option is -- it will decrease

A space ship left earth to retrieve mars soil samples. The force of a earth's gravity would reduce on the advancing spacecraft. We experience weightlessness in space because the gravity of planet has less impact on us. The gravitational attraction of earth at space craft altitudes is only around 11 percent lower than it is on the surface of earth.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

dude you should crop your image so only the question shows. but   can you explain it better