Answer: what happens when more stuff gathers ?
Step-by-step explanation:
cause and effect are connected , then if we want to know what the effect is , we should make a question that involves the cause , here the gathering of stuff is the cause , therefore , if we know what happens because of that cause, we will automatically will know the effect , the answer to the question “what happens when more stuff gathers?” is “it’s combined gravitation grows” which is the effect