Question

how we call non green plant called alive ​

Answer 1

non green plants can also be called living because they can be heterotrophic as mushroom or any other fungus or algae which is not green

Answer 2

Non green plant called alive because....

Because they able to make their own food .

now the question arise how¿

they have not green pigments called "chlorophyll"

yes ,they don't contain green pigments but they contains chlorophyll in their leaves they don't appeear green but they contain chlorophyll .

there are other pigments which don't appear green but they contain.

which helps in photosynthesis

also some of them are heterotrophs which depends on autotrophs.