Earth
An employment letter starts with the letter E. Perhaps an empathy letter to someone who is ill or bereaved.
Rover
Uranus
'envelope' because it starts with 'e' and ends with 'e' and only has 1 letter in it.
Earth
Planet earth has an animal that starts with the letter z. Zebra starts with the letter z and is on planet earth. There are a few microrganisms that start with the letter z also.
Uranis.
No river in Hungary starts with the letter E.
Our Amazing Earth
No planet so far known, begin with the letter O.
An employment letter starts with the letter E. Perhaps an empathy letter to someone who is ill or bereaved.
Eggnog is a drink that starts with the letter E.
Uranus is the planet that starts with the letter "U" in our solar system.
Heliatrobe
Rover
Uranus