OBJECTIVE FORESTRY

Detailed explanation-1: -producer → decomposer → consumer.

Detailed explanation-2: -A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid.

Detailed explanation-3: -Grass → Grasshopper → Frog → Hawk. Grass → Grasshopper → Rat → Fox. Grass → Rabbit → Fox. Grass → Rat → Snake →Hawk. Grass → Rat → Hawk.