Question 261· Soil formation and properties· WAEC
WAEC Agricultural Science questions
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- Explanation and discussion
Question 262· Soil formation and properties· WAEC
Clay soils hold a lot of water because they have
Explanation and discussionQuestion 263· Soil formation and properties· WAEC
Soil formed from material deposited by rivers is
Explanation and discussionQuestion 264· Soil formation and properties· WAEC
The capacity of soil to hold water is greatest in
Explanation and discussionQuestion 265· Soil formation and properties· WAEC
The best soil for most crops is
Explanation and discussionQuestion 266· Soil formation and properties· WAEC
Physical weathering of rocks can be caused by
Explanation and discussionQuestion 267· Soil formation and properties· WAEC
The type of soil water held so tightly round particles that plants cannot use it is
Explanation and discussionQuestion 268· Soil formation and properties· WAEC
The soil horizon that is darkest and richest in humus is the
Explanation and discussionQuestion 269· Soil formation and properties· WAEC
A soil with good crumb structure has
Explanation and discussionQuestion 270· Soil formation and properties· WAEC
A soil with large particles and large pore spaces that drains quickly is
Explanation and discussionQuestion 271· Soil formation and properties· WAEC
Earthworms improve the soil by
Explanation and discussionQuestion 272· Soil formation and properties· WAEC
Wind is an agent of
Explanation and discussionQuestion 273· Soil formation and properties· WAEC
The breakdown of rocks by repeated heating and cooling is
Explanation and discussionQuestion 274· Weeds and weed control· WAEC
Water hyacinth is a weed problem mainly in
Explanation and discussionQuestion 275· Weeds and weed control· WAEC
Which is a cultural method of weed control?
Explanation and discussionQuestion 276· Weeds and weed control· WAEC
Weeds reduce crop yield mainly by
Explanation and discussionQuestion 277· Weeds and weed control· WAEC
A herbicide that kills only certain plants and leaves the crop unharmed is
Explanation and discussionQuestion 278· Weeds and weed control· WAEC
Seeds of many weeds remain viable in the soil for a long time because of
Explanation and discussionQuestion 279· Weeds and weed control· WAEC
Paraquat is a
Explanation and discussionQuestion 280· Weeds and weed control· WAEC
Striga (witchweed) harms sorghum and maize by
Explanation and discussion
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