Benchmark 8A
The Designed World: Agriculture
Grades K-2, page 184

Most food comes from farms either directly as crops or as the animals that eat the crops. To grow well, plants need enough warmth, light, and water. Crops also must be protected from weeds and pests that can harm them.

NSES Content Standard C 
Life Science: The characteristics of organisms
Grades K-4, page 129
Organisms have basic needs. For example, animals need air, water, and food; plants require air, water, nutrients, and light. Organisms can survive only in environments in which their needs can be met. The world has many different environments, and distinct environments support the life of different types of organisms.