Herbicide that kills or injures a broad spectrum of plants is referred to as:

Herbicide that kills or injures a broad spectrum of plants is referred to as:

• A. Nonselective
• B. Selective
• C. Systemic
• D. Localized

Answer: (A)

In weed control, spectrum of activity matters: a nonselective herbicide is designed to harm a wide range of plant species, not just a specific type. That broad target is exactly what the question describes—killing or injuring a broad spectrum of plants. By contrast, selective herbicides target particular groups (like grasses or broadleaf plants) and spare others. Systemic describes how the chemical moves within the plant after uptake, often reaching roots and shoots, while localized (or contact) herbicides act mainly where they touch and may not move much. So for a chemical that affects many plants, nonselective is the right term. Glyphosate is a well-known example of a nonselective herbicide.

In weed control, spectrum of activity matters: a nonselective herbicide is designed to harm a wide range of plant species, not just a specific type. That broad target is exactly what the question describes—killing or injuring a broad spectrum of plants. By contrast, selective herbicides target particular groups (like grasses or broadleaf plants) and spare others. Systemic describes how the chemical moves within the plant after uptake, often reaching roots and shoots, while localized (or contact) herbicides act mainly where they touch and may not move much. So for a chemical that affects many plants, nonselective is the right term. Glyphosate is a well-known example of a nonselective herbicide.