Question

define the following terms :-

i) food chain
ii) food web
iii) soil erosion
iv) canopy
v) deforestation​

Answer 1

Answer:

food chain

A food chain describes how energy and nutrients move through an eco system

food web

A food web consists of all the food chains in a single ecosystem.

soil erosion

Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. 

canopy

A canopy is a decorated cover, often made of cloth,

Deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities.

Answer 2

Answer:

Long

Food Chain - Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism. ... Plants, which convert solar energy to food by photosynthesis, are the primary food source. In a predator chain, a plant-eating animal is eaten by a flesh-eating animal.

Food Web - A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

Soil erosion -Soil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air, plants, animals, and humans.

Canopy - A canopy is a decorated cover, often made of cloth, which is places above something such as a bed or a seat. 2. countable noun [usually singular] A canopy is a layer of something that spreads out and covers an area, for example the branches and leaves that spread out at the top of trees in a forest.

Deforestation - Deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities. Greatly accelerated by human activities since 1960, deforestation has been negatively affecting natural ecosystems, biodiversity, and the climate.

Short

food chain - a series of organisms in which each creature eats the one below it in the series and becomes a source of food for the organisms above it

food web - a system of food chains that are related to and dependent on each other

soil erosion - Soil erosion is a gradual process of movement and transport of the upper layer of soil (topsoil) by different agents

canopy - a cover that hangs or spreads above something

deforestation - cutting down trees over a large area