Which of the following events is likely to take place, if the nuclei from an 8-celled stage of an embryo are transplanted into enucleated eggs?
(i) Recipient egg dies
(ii) Donor nuclei die in the new environment
(iii) Cleavage occurs but is arrested after some time
(iv) Formation of the viable embryo in the recipient eggs please explain

iv. formation of the viable embryo in the recipient eggs

okay

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.