Help please I’ll mark as brainiliest

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces