Answer:
1,2 and four
Explanation:
over fishing would cause loss of every species
(4) produce new varieties of domestic animals
Although (1) (2) and (3) are modern-day uses of selective breeding, they are relatively recent developments in human history, only used for the past century or less. (4) is correct because the selective breeding of domestic animals to produce new varieties of dogs, cats, etc. has been used for thousands of years, dating back to the ancient Chinese and Egyptian dynasties.
No not if there are factory or houses that causes stuff like global warming