Every question from past board papers on Seed germination, phases and rate of growth, conditions of growth, newest paper first. Open any question for its full worked answer.
Given below are two statements :
Statement I : The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height.
Statement II : Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling.
In the light of the above statements, choose the most appropriate answer from the options given below :
Match Column - I with Column - II.
Column - I | Column - II
(a) Nitrococcus | (i) Denitrification
(b) Rhizobium | (ii) Conversion of ammonia to nitrite
(c) Thiobacillus | (iii) Conversion of nitrite to nitrate
(d) Nitrobacter | (iv) Conversion of atmospheric nitrogen to ammonia
Choose the correct answer from options given below.
The process of growth is maximum during :
The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is :
