No planet (we know of) is capable of producing visible light. Some may produce a bit of infrared light through the slow decay of long-lived radioisotopes.
The sun is capable of producing its own light.
A "Dark Bulb"? Oh, you mean a PLANET.
Not capable of producing light, but can be capable of reflecting light from another source. Source: definitions.net/definition/non-luminous#:~:text=Here%20are%20all%20the%20possible%20meanings%20and%20translations,light%20from%20another%20source.%20How%20to%20pronounce%20non-luminous%3F
Jupiter does not produce its own light, but it reflects light from the sun. Due to its distance from the sun, Jupiter appears as a bright object in the night sky when viewed from Earth. It is not a source of light itself.
Planets are not hot enough to emit their own light. They only reflect light.
The sun is capable of producing its own light.
A Planet does not give off light of its own.
No.
Some organisms in the kingdom Protista are capable of producing their own food through photosynthesis, like algae. However, not all protists have this ability, as some are heterotrophic and need to obtain nutrients from other sources.
The planet reflects solar light and a star has its own light.
Sun has its own light while other planets do not have their own light
We don't know if places in our own solar system that are thought to be capable of sustaining life have life; there's no way we could possibly know about a planet dozens of light years away.
The sun is a star that generates it's own light.
green plants are the organisms in the environment capable of producing their own food
Mars is known as the Red Planet. When aliens speak of Earth they call it the Blue Planet.
Pluto (if you still consider it as a planet),
A "Dark Bulb"? Oh, you mean a PLANET.