The main features that place homo habilis in the genus homo rather than australopithecus are:

1.slightly larger braincase.

2.smaller face.

.3 smaller teeth.

Explanation:

However it still possess some ape -like characteristics of long arms.and protruding face.

It inhabited some areas of sub-Saharan Africa million of years ago over 2.4.million.

It's first discovery was in northernTanzania, at Olduvai Gorge.

It's discovery made it to replace homoerectus as the oldest human fossil.Homoerectus used to be the oldest.

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

and after water is usually warmed by the sun the water temperature raises and then evaporates .