2. Combine the words in brackets with suitable SUFFIXES to complete the sentences.
Choose from the following suffixes:
-er, -or, -ing, -ion, -ness, -ity

1. A __________________ (boil) is a closed vessel in which water or other fluid is heated.
2. ________________ (compress) is the reduction in size of data in order to save space or
transmission time.
3. In chemistry, the ____________________(dense) of many substances is compared to
the______________ (dense) of water.
4. _______________________(transmit) is the act of passing something on.
5. _________________ (hard) is the characteristic of a solid material expressing its resistance to
permanent deformation.
6. Combustion process is also called __________________ (heat).