what would be one positive and one negative effect on human health due to urbanization.

Positive - Due to urbanization, the people of rural areas settle in urban cites. These reduces the labour work which was done in rural areas and as they get water and electricity. The reduced labour work help them in maintaining their physical health

Negative - If people continues to enjoy the facilities and sit ideally doing nothing is much more worse than the above one. It causes obesity and can ultimately lead to heart attack

The answer would be cstep by step explanation: all of the other animals developed their features while the salamander was born with them

The answer will be d