9.) Which one of the following statements about alkaline earth metals is NOT true ?
(a) Strontium salts burn with a red flame
(b) Barium metal is used in medicine to examine the alimentary canal of a patient by X-ray
(c) Green plants need magnesium in order to make the chlorophyll that trap the energy from sunlight in photosynthesis
(d) Red colour of gemstone Ruby is due to the element beryllium present in it
Answers
Answered by
0
Answer:
Vegetation is a general term for the plant life of a region; it refers to the ground cover provided by plants, and is, by far, the most abundant biotic element of the biosphere. Vegetation serves several critical functions in the biosphere, at all possible spatial scales.
Answered by
0
Answer:
Red colour of gemstone Ruby is due to the element beryllium present in it
option (d)
Similar questions