Higher Biosphere

What type of Humus is more acidic?

• Mull

• More

• Mustard

• Mor

What colour is Horizon B in a Brown Earth?

• Grey

• Light Brown

• Dark Brown

• Reddish Brown

What is Horizon C in a Brown Earth Soil?

• Glacial Rock

• Roots

• Weathered Rock

• Impermeable Clay

What type of vegetation is associated with Gley soils?

• Deciduous trees

• Coniferous tree

• Mosses, lichens and grasses

• No vegetation

Which soil has an iron pan?

• Brown Earth

• Podsol

• Gley

• Silt

Where are gley soils found?

• Southern hemisphere

• Tundra

• Tropical rainforests

• Deciduous forests

Which soil(s) have lots of biota present?

• Gley

• Podsol

• Brown Earth

What are examples of biota?

• Earthworms

• Fungi

• Spiders

• Insects

Why is a gley Horizon B blue-grey in colour?

• Soil biota

• FeO

• Humus

• Impermeable clay

What humus is associated with a Podsol?

• Mull

• More

• Mor