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3. (a) There are 950 million people living in the world who do not have enough food - Edexcel - GCSE Biology - Question 3 - 2013 - Paper 1
Question 3
3. (a) There are 950 million people living in the world who do not have enough food. The pie chart shows the regions of the world where these people live. - Develop... show full transcript
Worked Solution & Example Answer:3. (a) There are 950 million people living in the world who do not have enough food - Edexcel - GCSE Biology - Question 3 - 2013 - Paper 1
Step 1
Calculate the number of people living in the Pacific and Asia region who do not have enough food.
Answer
To calculate the number of people in the Pacific and Asia region, we subtract the number of people in other regions from the total:
Total number of people: 950 million
People in Developed Countries: 20 million
People in Africa: 295 million
People in Latin America and the Caribbean: 55 million
Therefore,
Step 2
Suggest why a country may not have enough food for its population.
Answer
Countries may struggle to provide enough food for their populations due to several factors, such as:
- Increased population outpacing food production.
- Reduced availability of food caused by environmental factors like crop failures or conflicts.
- Lack of space available for farming, limiting the land needed to grow sufficient crops.
Step 3
Step 4
Explain one benefit to the farmer of using this fungus to kill insects on crop plants.
Answer
One benefit of using Beauveria bassiana for farmers is that it reduces the need for chemical pesticides. This not only lowers production costs but also minimizes harmful environmental impacts and promotes sustainable farming practices.
Step 5
Explain why growing plants for biofuels can cause food shortages.
Answer
Growing plants for biofuels can lead to food shortages as it takes up land that could otherwise be used for food crops. This reduces the overall availability of food, especially in regions where arable land is limited, thus leading to increased competition for resources.
Step 6
Explain one advantage of using plants to make biofuels.
Answer
One advantage of using plants to produce biofuels is that they provide a renewable energy resource. Unlike fossil fuels, biofuels derived from plants can be replenished over time, contributing to energy sustainability and reducing dependency on non-renewable resources.