Bahan Organik Tanah
Quiz
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Science
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University
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Practice Problem
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Medium
Yuhersyani Rohezy
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22 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Apa fungsi utama bahan organik dalam tanah?
Memberikan warna pada tanah
Menyediakan habitat bagi hewan besar
Menurunkan kadar air tanah
Memperbaiki struktur tanah
Menurunkan pH tanah
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Erosi tanah hanya terjadi pada lahan miring.
BENAR
SALAH
Answer explanation
Jawabannya: SALAH. Erosi bisa terjadi juga di lahan datar yang tidak memiliki vegetasi di atasnya.
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Proses dekomposisi bahan organik dipengaruhi oleh:
Banyaknya bahan organik dalam tanah
Pelapukan batuan oleh iklim
Aktivitas mikroorganisme tanah
Banyaknya vegertasi yang tumbuh
banyaknya volume tanah
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pengolahan tanah yang berlebihan dapat menyebabkan hilangnya bahan organik tanah.
BENAR
SALAH
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Humus dalam tanah berasal dari:
Dekomposisi bahan organik
Mineral yang mengeras
Pelapukan batuan
Endapan lumpur
Aktivitas tumbuhan dan iklim
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Mengapa bahan organik sangat penting untuk menjaga kesuburan tanah?
Membentuk lapisan atas tanah
Meningkatkan kapasitas tukar kation (KTK)
Porositas tanah menjadi lebih rendah
Aktivitas organisme tanah menjadi berkurang
Berkurang kandungan air tanah
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Apa yang terjadi jika tanah kehilangan bahan organiknya dalam jangka panjang?
Tanah menjadi semakin subur
Tanah menjadi lebih tahan terhadap erosi
Kualitas air tanah meningkat
Lapisan atas tanah lebih mudah terbentuk
Struktur tanah menjadi rapuh
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