The role of science education can basically be explained by the four main purposes of science education. a. b. > Provide learners with the opportunity to learn about science. c. > Contribute towards personal and intellectual development of pupils. d.
Kuiper Belt Objects are thought to have formed farthest from the Sun. Oort Cloud comets are thought to have been ejected by the effects of Jupiter's gravitational influence. Daniel Â· 2 years ago.
What is however unclear is whether these comets are representative of those from the Kuiper Belt. According to Alessandro Morbidelli, the largest part of today's water comes from protoplanets formed in the outer asteroid belt that plunged towards Earth, as indicated by the D/H proportions in carbon-rich chondrites. The water in carbon-rich chondrites point to a similar D/H ratio as oceanic water.