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All Journal Jurnal Nakula: Pusat Ilmu Pendidikan, Bahasa Dan Ilmu Sosial Sosial : Jurnal Ilmiah Pendidikan IPS
Widya Khairunisa
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Humanities Education Mathematics Social Sciences Other

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Pengaruh Aktivitas Manusia Terhadap Kualitas Air Sungai Deli Esra silaban; Widya Khairunisa; Meilinda Suriani Harefa
Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial Vol. 2 No. 1 (2024): Januari: Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/nakula.v1i4.445

Abstract

The Deli River is one of the rivers located in Medan Belawan, Deli Serdang Regency, with an area of ​​48 hectares, a length of 73 kilometers (km), and a width of 5.58 m. People use the river for activities, bathing, washing, transportation, for other purposes. agriculture as well as industry, animal husbandry and other activities. People deliberately throw rubbish into the Deli River, such as used tires, plastic, other junk items that can no longer be used. Various activities around rivers such as transportation facilities, sanitation and hygiene practices of local communities, and fish farming have a negative impact on river quality. If these activities are balanced with high public awareness in preserving the river environment, then the river quality will be relatively good and the water will be clear.
Analisis Pengaruh Rotasi Bumi terhadap Perbedaan Waktu dan Iklim Antar Wilayah Arma Fuziah; Clarissa Oktoferin Sinaga; Mita Nasalisa Br Barus; Sri Andini; Widya Khairunisa; Elsa Kardiana
SOSIAL : Jurnal Ilmiah Pendidikan IPS Vol 3 No 3 (2025): SOSIAL: Jurnal Ilmiah Pendidikan IPS
Publisher : Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/sosial.v3i3.975

Abstract

Understanding of the Earth's rotation is often limited to the alternation of day and night. However, its impact is far more complex, including the formation of time zones and varying climate patterns. The objectives of this study include analyzing the Earth's rotation's influence on the formation of time differences between regions based on longitude and the relationship between the Earth's rotation and climate variations caused by atmospheric movement and global wind patterns. This study employs literature review techniques using secondary data, which involves collecting data indirectly by studying the relevant objects. The use of secondary data related to Earth's rotational movement influences time and climate is based on findings from previous research. The findings of this study reveal that the Earth's rotation causes the alternation of day and night and time differences in each region, with each 15-degree difference in longitude resulting in a one-hour time difference. In terms of climate, the Earth's rotation produces the Coriolis force, which deflects the direction of wind and ocean currents, thereby forming atmospheric circulation patterns such as the Hadley, Ferrel, and polar cells. These circulation patterns determine temperature and precipitation distribution across various regions, so the Earth's rotation directly shapes the distinct global climate characteristics of each area
Co-Authors Arma Fuziah Clarissa Oktoferin Sinaga Elsa Kardiana Esra silaban Meilinda Suriani Harefa Mita Nasalisa Br Barus Sri Andini