Correct answer
C. impedes growth of algae
Explanation
The correct answer is impedes growth of algae.
The radius of a bar bend to form a hook, should not be less than________?
If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is________?
Single flemish bond consists of________?
The ratio of the breadth to effective depth of a beam is kept________?
If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is________?
The moment-curvature relation at a plastic hinge is________?