The problem of less land for raising a livestock and the environmental risk for raising insects for food.
<u>Explanation:</u>
To raise a livestock, the farming requires a large land for all the cattle to graze. However to the constant increase of human population and wiping out of agricultural land it is high possibility for a proper cattle farming.
Whereas for raising insects it does not require a large land. A small quantity of land is more than enough for the insects. But for the rate of extinction and endangering insects, only a few is capable for consuming. The insects should be qualified for consuming and from the risk of endangering.
Livestock do not of the issue of getting endangered as they are more in number and adaptable to climate change. It is an unbalanced situation in both ways.
The essay by Henry David Thoreau in which he makes more elaborate use of metaphor is "Walden, or, Life in the Woods" (1854).
In this essay, Thoreau uses more elaborate metaphor to convey the ideas of nonindividuality and to show how the human mind is easily influenced as the Earth's soil is marked by the steps of others.
The way in which he describes and metaphorizes nature and human existance in the space of Walden Pond contributes to adapt complex and abstract ideas of humanistic guidance into understandable language.
The stage where you explore the topics and gather ideas is called prewriting.
