How does the geography of eastern europe most affect farming in the region? a. farms in the north have harsh winters, and farms in the south have mountains to deal with. b. farms in the south have harsh winters, and farms in the north have longer growing seasons. c. farms in the north have longer growing seasons then the farms in the south because of the soil. d. farms in the south grow wheat and rye, whereas farms in the north are more likely to grow citrus fruits.

What is the difference between an observational study and an​ experiment? choose the correct answer below. a. in an​ experiment, a treatment is applied to part of a population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. b. in an​ experiment, a treatment is applied to an entire population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. c. in an​ experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. in an observational​ study, a treatment is applied to part of a population and responses are observed. d. in an​ experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. in an observational​ study, a treatment is applied to an entire population and responses are observed.