Final answer:
Microbes affect our environment/atmosphere because b) They play a crucial role in nutrient cycling
Step-by-step explanation:
Microbes play a crucial role in nutrient cycling within the environment. They are actively involved in processes such as decomposition, nitrogen fixation, and mineralization, which contribute to the recycling of essential elements like carbon, nitrogen, and phosphorus. These microbial-driven processes ensure the availability of nutrients for plants and, consequently, for higher trophic levels in ecosystems.
Microbes are fundamental to the decomposition of organic matter, breaking down complex compounds into simpler forms that can be utilized by other organisms.
Additionally, certain microbes, like nitrogen-fixing bacteria, convert atmospheric nitrogen into a form that plants can use, promoting the growth of vegetation. Through these mechanisms, microbes contribute to maintaining the balance of nutrients in the environment, supporting the overall health and functioning of ecosystems.
In summary, b) microbes positively influence the environment by playing a pivotal role in nutrient cycling. Their activities contribute to the sustainability of ecosystems by ensuring the continuous availability of essential elements for various organisms. Understanding the intricate relationships between microbes and nutrient cycling is essential for appreciating the ecological services they provide and for developing strategies to maintain the health of our environment.