A. Lithophytes
B. Oxalophytes
C. Phancrophytes
D. Psammophytes
Related Mcqs:
- Plants growing on sand and gravel are called:
A. Eremophytes
B. Oxylophytes
C. Psilophytes
D. Psammophytes - Those chemicals which are produced by plants and affect other plants are broadly called:
A. Depresants
B. Allomones
C. Allelochemics
D. Kairomones - Among the plants listed, point out one that does not fit into ecological group represented by the other plants:
A. Acacia
B. Aloe
C. Euphorbia
D. Rhizophora - Among the plants listed, point out one that does not fit into biological group represented by other plants
A. Euphorbia
B. Acacia
C. Vallisneria
D. Aloe - The non-green plants are as important as the green plants because they:
A. Cause human disease
B. Cause diseases of other plants
C. Are useful in several industries
D. Bring about decomposition of dead animals and plant remains - Properties of ‘Sand Particles’ are:
A. Composed of mineral quartz
B. Larger is size
C. Have large pores due to which they
D. Do not retain water/nutrients
E. All of the above - Longitudinal sand dunes move slowly at the rate of _____ per annum:
A. 5 meters
B. 10 meters
C. 20 meters
D. 30 meters - Sand dunes adversely affect:
A. Communication system
B. Human health
C. Cultivation
D. Animal health
E. All of the above - Where sand dunes normally occur?
A. Sand accumulates
B. Sand deposited
C. Both (a) & (b)
D. None of these - With the construction of Thal irrigation canal, about _____ sand dunes have been converted into highly productive cultivated areas:
A. 1 m ha
B. 2 m ha
C. 3 m ha
D. 4 m ha
The correct answer to the question: "The plants present on the sand and gravel:" is "Psammophytes".
