Is it transparent or opaque?

Is it transparent or opaque?
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คำแนะนำของผู้เขียน

Seleccionar la opción correcta.

สำรวจแผ่นงาน

Da prehistoria á historia

Physical Science - Science

Vídeo explicativo

Моделі

Physical Science - Science

Інформаційні моделі

Los materiales

Physical Science - Science

FICHA DE REPASO

Pleasant sounds and noises

Physical Science - Science

Answer correctly.
It's important to answer ins order