Kara was born a year after the destruction of Kandor shown at the beginning (she was 19 at the time Krypton was destroyed). However, in "Kara", she told Clark she would sometimes escape from Kandor to see her aunt, Lara-El, which would have been impossible if Kandor had been destroyed before she was born - unless Kandor was subsequently rebuilt while she grew up, which is possible as the animated series Kara and the Chronicles of Krypton take place partially in Kandor just before Krypton's destruction.
Smallville is supposed to be Kansas but, the old pickup that drops Jor-el off at the Kent farm is a Mercury, which was Canada's model of the Ford pickup.
The Jor-El from this episode is just 5 years older than the Jor-El from "Relic", yet he looks much older than this.
The "desert" scenes do not look remotely like any region of Turkey, and in fact, though some places in Turkey might seem desert like, there is no "Turkish desert"
The Stones of Power and the Orb were supposedly created around 1966, but in Season Four, it was mentioned several times that the stones have been sought after for centuries; the Orb was also hinted to have been on Earth since at least World War II, while the stones were found in objects ranging from a few hundred to thousands of years old.
Jor-El calls the blue rock that he used on the Orb, "Blue Kryptonite", however, he had no way of knowing that it would be called such a name, as Clark was the one who named it in "Visitor." Chloe could have mentioned it off-screen, but that is doubtful, and, also Zod did not seem at all confused about the name "Kryptonite."