Which months are included for computing GDD in the Northern Hemisphere's growing season?

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Multiple Choice

Which months are included for computing GDD in the Northern Hemisphere's growing season?

Explanation:
GDD measures heat accumulation above a base temperature to predict when crops will develop. The growing season in the Northern Hemisphere is the period when crops are actively growing, which is typically spring through fall. During this window, days often exceed the base temperature and contribute to GDD; outside it, especially in winter, temperatures stay too low to accumulate meaningful GDD. Therefore, the months used for computing GDD in the growing season are April through October, capturing the main warmth window when growth occurs. The other ranges either include too-cold months or omit part of the active growth period.

GDD measures heat accumulation above a base temperature to predict when crops will develop. The growing season in the Northern Hemisphere is the period when crops are actively growing, which is typically spring through fall. During this window, days often exceed the base temperature and contribute to GDD; outside it, especially in winter, temperatures stay too low to accumulate meaningful GDD. Therefore, the months used for computing GDD in the growing season are April through October, capturing the main warmth window when growth occurs. The other ranges either include too-cold months or omit part of the active growth period.

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