Podcast
Podcast
Podcast
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Questions and Answers
Questions and Answers
Jeseň je prechodným ročným obdobím medzi zimou a letom na severnej pologuli.
Jeseň je prechodným ročným obdobím medzi zimou a letom na severnej pologuli.
False (B)
V jeseni sa dni stávajú dlhšími a noci kratšími.
V jeseni sa dni stávajú dlhšími a noci kratšími.
False (B)
Listy na opadavých stromoch menia farbu .
Listy na opadavých stromoch menia farbu .
True (A)
Mnoho zvierat sa v jeseni pripravuje na zimu, čo zahŕňa aj zhromažďovanie potravy.
Mnoho zvierat sa v jeseni pripravuje na zimu, čo zahŕňa aj zhromažďovanie potravy.
V jeseni sa zvyčajne zvyšuje hladina slnečného žiarenia na Zemi.
V jeseni sa zvyčajne zvyšuje hladina slnečného žiarenia na Zemi.
Obdobie jesene je časom zberu plodín, ako sú ovocie a zelenina.
Obdobie jesene je časom zberu plodín, ako sú ovocie a zelenina.
Abscisia je proces, pri ktorom opadavé stromy strácajú listy.
Abscisia je proces, pri ktorom opadavé stromy strácajú listy.
V jeseni teplota zvyčajne stúpa, čo vedie k teplejším dňom.
V jeseni teplota zvyčajne stúpa, čo vedie k teplejším dňom.
Questions and Answers
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Flashcards
Flashcards
Jeseň (polopula)
Jeseň (polopula)
Jeseň alebo jeseň je prechodné obdobie medzi letom a zimou na severnej pologuli. Vyznačuje sa zmenou počasia, rastlinného života a denného svetla.
Datumy jesene
Datumy jesene
Presné dátumy začiatku a konca jesene sa mierne líšia v závislosti od zemepisnej polohy a používanej definície, ale všeobecne je to september, október a november na severnej pologuli a marec, apríl a máj na južnej pologuli.
Zmeny teploty
Zmeny teploty
Zmeny teploty sú charakteristickým znakom jesene. Dni sa zreteľne skracujú a noci sa predlžujú. Teploty sa postupne ochladzujú.
Zmeny farieb listov
Zmeny farieb listov
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Zvieracia príprava na zimu
Zvieracia príprava na zimu
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Zber úrody
Zber úrody
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Kultúrne tradície jesene
Kultúrne tradície jesene
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Opadávanie listov
Opadávanie listov
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Flashcards
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Study Notes
Study Notes
Autumnal Season
- Autumn, or fall, is the transitional season between summer and winter in the Northern Hemisphere. It's characterized by shifts in weather patterns, plant life, and daylight hours.
- The precise start and end dates of autumn vary by location and definition, but generally, it occurs in September, October, and November in the Northern Hemisphere, and March, April, and May in the Southern Hemisphere.
- Temperature changes are key to autumn. Days become noticeably shorter, and nights longer. Temperatures gradually decrease.
- Leaves on deciduous trees change color. This color change results from a reduction in chlorophyll production, revealing other pigments like carotenoids (yellow and orange) and anthocyanins (red and purple).
- Many animals prepare for winter during autumn. This includes migration to warmer climates (birds and some mammals), food storage, and growth of thicker fur or feathers.
- Autumn is a harvest season globally. Farmers gather crops—fruits, vegetables, grains, and nuts—before winter sets in.
- Autumn is associated with various cultural traditions and celebrations connected to the harvest and changing nature. Activities like pumpkin-picking, apple-bobbing, and festivals are common.
Characteristics of Autumn
- Deciduous Tree Changes: The most noticeable autumn aspect in temperate regions is the color change and leaf drop in deciduous trees.
- Reduction in Sunlight: Decreased daylight hours lead to reduced solar radiation, resulting in gradually cooler temperatures.
- Increased Precipitation: Autumn can bring more rain or falling leaves as they detach from trees.
- Changes in Animal Behavior: Migration patterns are prominent, with birds moving to warmer areas and animals preparing for winter.
- Harvest Season: Agriculture is crucial as farmers harvest crops for winter food supplies.
- Air Quality: Leaf litter decomposition can impact air quality in some areas, potentially causing pollution.
Specific Aspects of Autumn
- Leaf Drop: The leaf drop process, or abscission, is a complex biological adaptation in trees, involving the separation of the leaf stalk from the branch.
- Weather Patterns: Autumn weather varies considerably. Regions may experience mild sunny days, while others endure strong winds and occasional rain or storms. There's a general trend toward colder temperatures.
- Harvest Festivals: Many cultures celebrate autumn's harvest with festivals, traditions, and celebrations honoring the abundant season.
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