Which of the following could be a result of selective breeding? corn having potato offspring higher yield in corn reproduction rose bushes that grow without water pine trees that never produce seeds

higher yield in corn reproduction

Selective breeding is a human induced breeding process in plants, also known as artificial selection. In this process male and female plants with desirable  phenotypic characteristic are interbred so that offspring plants acquire those desirable characteristics. Selective breeding can be used to obtain higher yielding crops, crops that are resistant to pests, to improve the quality of crops. It increases the food production potential of crops therefore, corn yield can also be increased by selective breeding.  

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high