FitzSimmons are both British but occasionally use Americanisms. In this episode, Simmons says "dove" instead of "dived."
They're on a planet that is supposed to be barren. At 16:46 you can see a tree's shadow with leaves and branches that are blowing in the wind.
The title of the episode and word used frequently in describing the portal "Maveth" is actually incorrect in terms of modern day Hebrew. There is no th (thuh) sound in the language, especially with words that are not taken from other languages. In Hebrew when presented in the, show it is also spelled with the letter raysh instead of the letter vav. The word would be pronounced either as mavet or maves.