kilogram or hertz

UNIT
List of words for the clue kilogram or hertz from the crossword:
KILO CAR MEGA TERA MASS RENT TIME METER YARD MILE ACRE SECOND RENTA DOLLAR AUTO SEDAN CYCLE RCA AVIS
WordClue
ACREkilogram - pound, hectare - ?
INCHkilogram - pound, centemetre - ?
MASSsecond - time, kilogram - ?
MILEkilogram - pound, kilometre - ?
TIMEkilogram - mass, second - ?
YARDkilogram - pound, metre - ?
LITREpound - kilogram, gallon - ?
METERmass - kilogram, distance - ?
METREpound - kilogram, yard - ?
PARTYRepublican or Conservative
POUNDmetre - yard, kilogram - ?
POWERsolar or of will
RIVERNeva or Mekong
GALLONkilogram - pound, litre - ?
SECONDmass - kilogram, time - ?
HECTAREpound - kilogram, acre - ?
DISTANCEkilogram - mass, meter - ?
HEINRICHHertz, physycist
KILOMETREpound - kilogram, mile - ?
CENTEMETREpound - kilogram, inch - ?
UNITkilogram or gallon
INCHkilogram - pound, centemetre - ?