The answer is signing or sign language. As this is the expression or language that they use to communicate towards other people as they were not able to communicate using their tongues as they don't have any hearing or their hearing input is impaired.
<span>is the use of Earth's renewable and nonrenewable natural resources in ways that ensure resource availability in the future.</span>
Answer:
There are different types of Constitution; these are the Written Constitution, the Unwritten Constitution, the Conventional or Enacted Constitution, the Cumulative or Evolve Constitution, the Rigid or Inelastic Constitution and the Flexible or Elastic Constitution.
Explanation:
