The deliberate modification of the earth in order to obtain economic gain or sustenance is called horticulture. select one: true false crop rotation is used to avoid exhausting: select one: a. nutrients in the soil b. plowing resources c. seedlings d. rain tables

The deliberate effort to modify a portion of Earth's surface through the cultivation of crops and the raising of livestock for sustenance or economic gain. ... crop rotation. The practice of rotating use of different fields from crop to crop each year, to avoid exhausting the soil.The deliberate modification of Earth's surface through cultivation of plants and rearing of animals toobtain subsistence or economic gain.crops planted to hold the soil in place between times that main food crops are growing. I.e. Rye grassseeds that prevent erosion when corn and soy beans are not growing and makes planting easier by loosening the soil structure. Recycle nutrients and may reduce fertilizer use

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.