that layers of sediment were originally deposited horizontally under the action of gravity
Sirius B is brighter than the sun.
Answer:Fences, loud alarms, and keeping animals in a safe space
Explanation:
Hypotheses must be provable. If scientists cannot prove a "hypothesis" right or wrong, they need to change it to a legitimate hypothesis - something you can prove.
If it is proven wrong, they can change certain aspects of it to make a more specific experiment.
Answer:
d Divergent plate boundary
