Soil science

Question 1 of 10

The particle density of most mineral soils is about

Question 2 of 10

The washing down of nutrients beyond the reach of roots is

Question 3 of 10

Nitrogen deficiency in plants shows as

Question 4 of 10

The decayed remains of plants and animals in soil is

Question 5 of 10

The soil with the smallest particles is

Question 6 of 10

A soil sample weighing 120 g wet and 100 g oven-dry has a moisture content (dry basis) of

Question 7 of 10

The process by which soluble nutrients are washed down below the reach of plant roots is

Question 8 of 10

Decomposed organic matter in the soil is called

Question 9 of 10

The soil with the largest particles is

Question 10 of 10

The three primary (major) plant nutrients are