Assignment/MCQ's No. 2: Biodynamic Agriculture (Bp603t Hdt)

Explanation
Integrated pest control (IPC) is a broad-based approach that integrates practices for economic control of pests. This approach involves combining various pest control methods such as biological control, cultural control, physical control, and chemical control in a coordinated and sustainable manner. By using a combination of these methods, IPC aims to minimize the reliance on pesticides and reduce the negative impact on the environment while effectively managing pest populations. GPC and IFC are not broad-based approaches like IPC, and "None of the above" is not the correct answer as IPC fits the description given in the question.

Explanation
Biodynamic agriculture uses management practices that are intended to "restore, maintain and enhance ecological harmony." This approach focuses on creating a balanced and self-sustaining ecosystem by integrating organic farming methods, biodiversity conservation, and holistic management techniques. It emphasizes the use of natural fertilizers, composting, crop rotation, and the avoidance of synthetic chemicals. Biodynamic farmers also consider lunar and astrological cycles in their planting and harvesting decisions. Overall, biodynamic agriculture aims to promote the health and vitality of the soil, plants, animals, and humans, while fostering a harmonious relationship with the environment.

Explanation
Germany accounts for 45% of the global total, while the remainder of the countries average 1750 ha each. This means that Germany has a significant share of the global total, but it is not the majority. The fact that the remainder average 1750 ha per country suggests that there are many countries with smaller land areas compared to Germany.

Explanation
The humus mixture is prepared by filling the horn of a cow with cow manure and burying it in the ground. The depth at which it is buried is between 40 and 60 centimeters below the surface.

Explanation
Biopesticides usually have no known function in photosynthesis, growth, or other basic aspects of plant physiology. This means that they do not directly contribute to the plant's metabolic processes or overall development. In contrast, humas, chemical pesticides, and DDT may have some impact on plant physiology, either by providing nutrients (humas) or by affecting the plant's growth or metabolism (chemical pesticides and DDT). Therefore, the correct answer is biopesticides.

Explanation
Living organisms, such as agents, are affected by various factors like temperature, pH, moisture, UV, soil conditions, and microbial competitors in the environment. Biopesticides, which are derived from natural materials like plants, animals, bacteria, and certain minerals, are a type of pesticide that utilizes living organisms to control pests. Therefore, biopesticides are the correct answer as they align with the concept of living organisms being affected by environmental factors and being used for pest control.

Explanation
The correct answer is "Citrus" because the question mentions that Forrest Innovations is investigating RNAi as a solution to citrus greening disease. Citrus greening disease specifically affects citrus plants, so it makes sense that the company would focus on finding a solution for this particular crop.

Explanation
Insects are cold-blooded, meaning their body temperature is determined by the surrounding environment. This is different from warm-blooded animals like humans, who can regulate their body temperature internally. Therefore, the physical development of insects is dependent on the temperature of the area they inhabit.