Main Ideas and Supporting Details

Is the following statement a main idea or a supporting detail? 'The sun is essential for life on Earth.'

• a fact about the sun

• main idea

• a description of sunlight

• a conclusion about life

Answer explanation

The statement 'The sun is essential for life on Earth' presents a central concept about the importance of the sun, making it a main idea rather than a supporting detail or description.

Identify whether this statement is a main idea or a supporting detail: 'Many plants rely on sunlight for photosynthesis.'

• main idea

• supporting detail

• summary

• conclusion

Answer explanation

The statement 'Many plants rely on sunlight for photosynthesis' provides specific information that supports a broader topic about plant biology. Therefore, it is a supporting detail rather than a main idea.

Determine if the following is a main idea or a supporting detail: 'Water covers about 71% of the Earth's surface.'

• supporting detail

• summary

• conclusion

• main idea

Answer explanation

The statement 'Water covers about 71% of the Earth's surface' provides specific information that supports a broader topic about Earth's characteristics. Therefore, it is classified as a supporting detail, not a main idea.

Is this statement a main idea or a supporting detail? 'The process of photosynthesis converts light energy into chemical energy.'

• conclusion

• main idea

• fact

• supporting detail

Answer explanation

The statement 'The process of photosynthesis converts light energy into chemical energy' presents a central concept about photosynthesis, making it a main idea rather than a supporting detail or fact.

Classify the following as a main idea or a supporting detail: 'Animals depend on plants for food and oxygen.'

• conclusion

• supporting detail

• summary

• main idea

Answer explanation

The statement 'Animals depend on plants for food and oxygen' provides specific information that supports a broader concept about the relationship between animals and plants, making it a supporting detail rather than a main idea.

Is the statement a main idea or a supporting detail? 'Climate change is affecting weather patterns globally.'

• supporting detail

• main idea

• opinion

• fact

Answer explanation

The statement 'Climate change is affecting weather patterns globally' presents a central concept about climate change's impact, making it a main idea rather than a supporting detail.

Identify if this is a main idea or a supporting detail: 'Rising temperatures can lead to more severe storms.'

• supporting detail

• main idea

• summary

• conclusion

Answer explanation

The statement 'Rising temperatures can lead to more severe storms' provides specific information that supports a broader argument about climate change, making it a supporting detail rather than a main idea.

Determine whether the following is a main idea or a supporting detail: 'Deforestation contributes to increased carbon dioxide levels.'

• supporting detail

• main idea

• conclusion

• summary

Answer explanation

The statement 'Deforestation contributes to increased carbon dioxide levels' provides specific information that supports a broader argument about environmental issues, making it a supporting detail rather than a main idea.

Is this statement a main idea or a supporting detail? 'Renewable energy sources can help reduce carbon emissions.'

• fact

• conclusion

• supporting detail

• main idea

Answer explanation

The statement 'Renewable energy sources can help reduce carbon emissions' provides specific information that supports a broader argument about the benefits of renewable energy, making it a supporting detail rather than a main idea.

Determine if the following is a main idea or a supporting detail: 'Sustainable practices can help preserve natural resources.'

• fact

• conclusion

• supporting detail

• main idea

Answer explanation

The statement 'Sustainable practices can help preserve natural resources' presents a central concept about sustainability, making it a main idea rather than a supporting detail.