Which choices describe a step in the process of oil formation? Choose all correct answers.

1. Most organic material is recycled by microorganisms.

2. Organisms die and sink to the ocean floor.

3. Heat and pressure changes dead remains.

4. Layers of sediment cover dead remains.

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?