Question 1

What factors affect food supply in ecosystems according to the Edexcel GCSE Combined Science curriculum?

Accepted Answer

Food supply in ecosystems is influenced by several factors including climate conditions, soil quality, water availability, and biodiversity. Human activities such as agriculture, deforestation, and pollution also play a significant role in altering food supply dynamics. Understanding these factors is crucial for managing ecosystems sustainably.

Question 2

How does climate change impact food supply in ecosystems?

Accepted Answer

Climate change affects food supply by altering weather patterns, which can lead to extreme conditions like droughts or floods. These changes can disrupt growing seasons and reduce crop yields. Additionally, climate change can affect the distribution of pests and diseases, further impacting food production and supply.

Question 3

What is the role of biodiversity in maintaining a stable food supply?

Accepted Answer

Biodiversity contributes to a stable food supply by supporting ecosystem services such as pollination, nutrient cycling, and pest control. Diverse ecosystems are more resilient to changes and can better withstand environmental stresses, ensuring a more reliable food supply. Protecting biodiversity is essential for sustainable food production.

Question 4

How do human activities influence food supply in ecosystems?

Accepted Answer

Human activities such as agriculture, urbanization, and industrialization can significantly impact food supply. Agriculture can enhance food production but may also lead to habitat destruction and soil degradation. Urbanization reduces available land for farming, while pollution from industrial activities can contaminate water and soil, affecting food quality and availability.

Question 5

What strategies can be employed to improve food supply sustainability?

Accepted Answer

Improving food supply sustainability involves adopting practices like crop rotation, organic farming, and integrated pest management. These methods help maintain soil health and reduce reliance on chemical inputs. Additionally, promoting local food systems and reducing food waste are effective strategies to enhance food supply sustainability and security.

Food Supply

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