Final answer:
Methane does not condense into ice in the warmer atmospheric temperatures of Jupiter and Saturn.
Step-by-step explanation:
The statement is true. Methane does not condense into ice in the warmer atmospheric temperatures of Jupiter and Saturn. At the temperatures and pressures of the upper atmospheres of these planets, methane remains a gas, while ammonia can condense and freeze. The primary clouds that we see around Jupiter and Saturn are composed of frozen ammonia crystals, which mark the upper edge of the planets' tropospheres.