Biology

which has no distinctive colour or taste

with high concentration of salt

with tittle suspended materials

with no water weeds

which sustains no animal life

presence of tall trees with thick bark

bare soil with very few trees

presence of fire-resistant trees

abundant herbivores

predominance of woody trees.

The number of organisms in a trophic level

The relationship between plants in different trophic levels

The number of saprophytes and parasites in a habitat

The number of predators in a habitat

Progressive decrease in the number of individuals from lower to higher trophic level

Respiration in plants

Decay of organism

Burning of organic matter

Burning of fuels

During photosynthesis.

transpiration

digestion

excretion

respiration

decay