Which of the following statements is true?
a. sedimentary rocks form from weathered rock and other particles.
b. during the rock cycle, igneous rock is weathered into metamorphic rock.
c. minerals with cubed crystals belong to the orthorhombic crystal system.
d. natural gas is formed from inorganic material.

B. During the rock cycle, igneous rock is weathered into metamorphic rock.

Explanation:

The igneous rock is formed by solidification of the magma after the volcanic eruption. The magma is hot and cools very slowly. It forms over the surface of the earth crust. The weathering of the igneous rocks may lead to the formation of the metamorphic rock. This occurs over the undersurface of the earth crust under high heat and pressure.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.