Which of the following statements regarding sediment patterns is true?

1. Sediments can be transported by water and by wind
2. Carbonate sediments are only found at depths deeper than the carbonate compensation depth
3. Ocean sediment is typically thickest near mid-ocean ridges and thinnest near coastlines
4. Siliceous oozes are most common in warm waters below low-productivity zones such as the subtropical gyres
5. Abyssal clays are most abundant close to coastlines