Previous Year Questions

Question :

Directions : In the following passage, some of the words have been left out and replaced with blanks represented by letters. First, read the passage and try to understand what it is about. Then, fill in the blanks as per the questions given.

Pollination is a/an ___(A)___ ecological process in which pollinators, such as bees, butterflies, birds, and even some mammals, transfer pollen from one flower to another, enabling plants to reproduce. This process is vital for the production of many fruits, vegetables, and seeds that humans ___(B)___ on for food. However, the role of pollinators is increasingly under threat due to the widespread use of pesticides in agriculture. Pesticides, designed to protect crops from pests, can be ___(C)___ toxic to non-target species, particularly pollinators. Many commonly used pesticides, such as neonicotinoids, interfere with the nervous systems of insects, causing disorientation, reduced foraging ability, and even death. Pollinators exposed to these chemicals can experience ___(D)___ immune systems, reduced reproductive success, and diminished overall health. The loss of these essential species threatens not only biodiversity but also global food security. Research has shown that even low-level pesticide exposure can have long-lasting effects on pollinator populations. For example, bees, which are crucial for the pollination of many crops, are particularly vulnerable ___(E)___ pesticide use. Declining bee populations can result in lower crop yields, which could lead to increased food prices and shortages. To protect pollinators, it is essential to adopt more sustainable agricultural practices, such as ___(F)___ pesticide use, opting for organic farming methods, and implementing integrated pest management systems. By safeguarding pollinators, we ensure the continued health of our ecosystems and food production systems.

Which of the following can replace blank (D) in the passage?