I just need the answers

The differences between large particle reinforced composites and dispersion strengthened composites are: Select one or more: For dispersion-strengthened composites, particle-matrix interaction is on the molecular level. For large particle reinforced composites, particle-matrix interaction is not on the molecular level. The have different matrices. They have different particle sizes. The major load carrier in dispersion-strengthened composites is Select one: O Both fibre and matrix Fibre O Depends on the method of processing O Matrix Which of the following does NOT affect the ductile-to-brittle transition temperature in steel? Select one: Crystal structure Applied load O Heat treatment O Interstitial atom