Which of the following best describes parent rock? crushed gravel added to depleted soil to provide nutrients

the primary stone sheet from which a boulder or stone originated

high-nutrient igneous rock like obsidian, extruded from the earth’s magma

the lowest layer of the soil horizon, containing little or no organic matter

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602