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1. Berapa diameter matahari..
A. Sekitar 1.684.392km
B. Sekitar 1.392.284km
C. Sekitar 2.466.467km
D.) Sekitar 1.392.684km.
2. Jarak rata-rata Matahari dari Bumi..
A.) Sekitar 149.6 juta kilometer (1 AU)
B. Sekitar 139.7 juta kilometer (1 AU)
C. Sekitar 139.7 juta kilometer (1 AU)
D. Sekitar 146.9 juta kilometer (1 AU)
3.Matahari terbentuk sekitar 4,6 miliar tahun yang lalu akibat..
A. Gravitasi suatu wilayah di sebuah molekul yang tak pasti
B. Benturan para molekul angkasa
C.) Peluruhan gravitasi suatu wilayah di dalam sebuah awan molekul besar.
D. Benturan meteor
4. Energi sinar Matahari ini membantu perkembangan nyaris semua bentuk kehidupan di Bumi melalui..
A. Cuaca, suhu
B.) fotosintesis, mengubah iklim & cuaca Bumi.
C. A dan b salah
D. Semua bener
5. Sebagian besar materi berkumpul di tengah, Klasifikasi bintang Matahari, berdasarkan kelas spektrumnya, adalah..
A.) Bintang deret utama G (G2V)
B. Bintang deret tengah G (G1V)
C. Bintang deret akhir G (G2V)
D. Bintang deret awal G (G1V)
6. Sering digolongkan sebagai katai kuning karena radiasi tampaknya lebih intens dalam porsi spektrum..
A. Kuning-hijau
B. Biru-kuning
C. Merah-hijau
D.) Kuning-merah
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