Which one of the following fertilizers leaves maximum acidity in the soil?
(a) Ammonium Nitrate
(b) Urea
(c) Calcium Ammonium Nitrate
(d) Ammonium Sulphate
Answer:
Leaf spot disease of rice is caused by
(a) Virus
(b) Fungus
(c) Bacteria
(d) None of these
Answer:
The maximum loss of water in transpiration is from
(a) Hydothodes
(b) Stomata
(c) Lenticels
(d) Cuticle
Answer:
The process in which loss of water occurs in the form of water vapour through aerial part of plant is
(a) Exosmosis
(b) Transpiration
(c) Respiration
(d) Guttation
Answer:
The green pigment found in plants that perform photosynthesis is
(a) Chloroform
(b) Clorophyll
(c) Chloroplast
(d) None of these
Answer:
Water exadation through hydrothodes is
(a) Excretion
(b) Hydrolysis
(c) Guttation
(d) Transpiration
Answer:
Plant cooling occurs due to
(a) Transpiration
(b) Photorespiration
(c) Assimilation
(d) Guttation
Answer:
Which of the following structures of a plant is responsible for transpiration?
(a) Root
(b) Stomata
(c) Bark
(d) Xylem
Answer:
Which one of the following plants produces seed but not fruit?
(a) ground nut
(b) Mustard
(c) Almond
(d) Cycus
Answer:
Which of the following is required for synthesis of carbohydrate
(a) Nitrogen
(b) Carbon dioxide
(c) Chlorophyll
(d) Water
Answer: