What is the meaning of “anchoring earth” and “earth cave”?

Hint: The poet has mentioned ideas on how to kill a tree to make humans feel like they are committing a heinous crime throughout the poem. The poem depicted humans' destructive nature as well as nature's indestructibility.

Complete answer:
Gieve Patel wrote the poem titled "On Killing a Tree." The poem paints a vivid picture of man's cruelty to trees. The poet claims that trees are living things that should not be cut down. Destroying a tree is equivalent to murdering a person. A tree does not die simply by being chopped and cut. It grows back from where it was cut.

The term "anchoring earth" refers to the tree's roots that lie within the earth and act as an anchor for the tree to grow and hold it firmly to the earth. They keep the tree safe by providing it with water and nutrients.

The term "earth cave" refers to the ground on which the tree's foundation is laid because it holds the roots, keeps the tree upright, and protects it from adversity such as heavy rainfall or storm.

Note: According to the poet, it takes a long time to kill a tree. It cannot be accomplished with a simple knife cut. The tree has grown slowly, and its roots have penetrated deep into the soil. The tree obtained its nutrients from the earth and grew upward by absorbing years of sunlight, air, and water.