Exercise 2 solution

Example answer (yours will differ):
Jar test after a day: total depth of settled soil 6 cm.
Sand layer 3 cm = 50%, silt 2 cm = 33%, clay 1 cm = 17%.
Texture: a sandy loam. It drains freely but may dry out in summer.
Most helpful habit: add compost or well-rotted manure every year to hold water and nutrients, and mulch in summer.
(These percentages are invented for illustration.)