Final answer:
Factors limiting the growth of broccoli or maize include water availability (abiotic), nutrient levels (abiotic), and pest infestation (biotic), all of which need to be at optimal levels to support healthy plant growth.
Step-by-step explanation:
Three factors that could limit the growth of broccoli or maize include:
- Water Availability (Abiotic Factor) - Water is essential for plant growth, but too little or too much can adversely affect crops. Insufficient water leads to drought stress, while excess water can cause root rot or deprive roots of oxygen.
- Nutrient Levels (Abiotic Factor) - Nutrients like nitrogen and phosphorus are vital for plant growth. Deficiencies can limit plant growth, while excess can lead to nutrient toxicity and environmental issues.
- Pest Infestation (Biotic Factor) - Pests such as insects, nematodes, or fungi can damage plants, reducing their growth or even killing the plants outright.
Each of these factors can either provide the conditions necessary for optimal growth or, conversely, become detrimental to plant health when out of balance.