Plants for food and fibre- p. 138-148 check

In soil, minerals come from...

• Rocks

• living things

• decaying things

There are _____ types of soil that we are studying.

• 1

• 2

• 3

• 4

Which of the following is not a type of soil?

• sand

• silt

• clay

• humus

Which type of soil does not retain ( hold) a lot of water for long?

• sand

• loam

• clay

_______ soil is the best for plant growth and is dark soil.

• sand

• silt

• loam

Farmers have to take care of the soil so plants can grow well. Which of the following is the best answer?

• fertilize

• irrigate

• clear land

• rotate crops

• All are ways to take care of the soil.

What would happen if farmers did not rotate their crops each year?

• Nothing would happen- everything would be fine

• More water would stay in the field

• Soil would run out of nutrients

• Plants would remain healthy

Which of the following is a characteristic of sandy soil?

• Usually dark brown or black in colour

• Has lots of mineral particles but little humus

• Has very few lumps and runs through your fingers

Which of the following is a characteristic of clay soil?

• Usually dark brown or black in colour

• Has lots of mineral particles but little humus

• Has very few lumps and runs through your fingers

Which of the following is a characteristic of loam soil?

• Usually dark brown or black in colour

• Has lots of mineral particles but little humus

• Has very few lumps and runs through your fingers