How have advances in technology contributed to our ability to explore the ocean?

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid