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The Biosphere

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Total cards: 18•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (18)

#1
Front (Question)

What is the lithosphere?

Back (Answer)

Thin layer of soil and rock covering the earth

#2
Front (Question)

What is the hydrosphere?

Back (Answer)

All the water found on earth in sea, rivers and lakes and water vapour in the air.

#3
Front (Question)

What is the atmosphere?

Back (Answer)

Thin layer of gas surrounding the earth consisting mainly of nitrogen, oxygen and carbon dioxide.

#4
Front (Question)

What is the biosphere?

Back (Answer)

All areas of earth where life exists

#5
Front (Question)

What name is given to things that feed on organic matter and help break it down?

Back (Answer)

Decomposers.

#6
Front (Question)

How are nutrients recycled through the environment?

Back (Answer)

When dead plants and animals decay, the nutrients in their bodies are returned to the ecosystem.

#7
Front (Question)

What 3 aspects are contained in the biosphere?

Back (Answer)

• Parts of lithosphere, hydrosphere and atmosphere that support life. • All living organisms on earth • Dead organic matter

#8
Front (Question)

What is an ecosystem?

Back (Answer)

All living things in a particular place interacting with their environment

#9
Front (Question)

What is the name of tiny organisms such as bacteria?

Back (Answer)

Micro-organisms

#10
Front (Question)

Name one important role of micro-organisms.

Back (Answer)

They cycle nutrients through the environment for reuse.

#11
Front (Question)

Name the 7 processes of life.

Back (Answer)

• Nutrition (feeding) • Growth • Reproduction • Respiration (energy production) • Excretion • Sensitivity to environment • Movement

#12
Front (Question)

Define photosynthesis.

Back (Answer)

The process by which plants use light energy to make food.

#13
Front (Question)

Name the 5 basic needs of all living organisms.

Back (Answer)

• Energy • Gases • Water • Soil • Favourable temperatures

#14
Front (Question)

What gas is required for photosynthesis?

Back (Answer)

Carbon dioxide

#15
Front (Question)

What is the name of the process by which plants and animals change to survive their physical environment?

Back (Answer)

Adaption

#16
Front (Question)

How have fish adapted to survive in water?

Back (Answer)

• Fins to move quickly through the water. 2. Gills to get oxygen from the water.

#17
Front (Question)

How has seaweed adapted to survive in water?

Back (Answer)

• A holdfast keeps them attached to rocks • Stems are long and flexible so they don’t break. • Their fronds are held up to the light for photosynthesis.

#18
Front (Question)

How do gemsbok cool their blood?

Back (Answer)

It passes through vessels in its nose which keep it cool.