In which layer of the soil profile do most biological activities occur?
D-horizon
C-horizon
B-horizon
A-horizon
Correct answer is D
Option D is correct as this A-horizon contains most minerals and organic matter.
In preparing for parturition of a sow, warmth should be provided to
Promote growth of hair of the young
Make the young suckle colostrum
Prevent anaemia in the young
Prevent chilling of the young
Correct answer is D
No explanation has been provided for this answer.
P
Q
R
S
Correct answer is A
FCR for P = 20/50=2/5=0.4
FCR for Q = 30/90=1/3=0.33
FCR for R = 25/100=1/4- 0.25
FCR for S = 30/150=1/5=0.2
Option A is correct because P has the highest FCR
Which of the following statements about soil organisms is false?
Soil pH will affect the population of soil organisms
Population of soil living organisms is increased with increase in soil organic matter
Soil with good texture and structure cannot harbour soil microbes
Soil temperature affects the activities of soil organisms
Correct answer is A
No explanation has been provided for this answer.
A regulatory control of diseases in crop production is
Roughing
Quarantine
Crop rotation
Soil tillage
Correct answer is B
No explanation has been provided for this answer.