Choose the best option to complete the sentence.
Noise pollution happens when a sound’s loudness is _______.
more than 30 dBs more than 50 dBsmore than 70 dBsMôn học
Chủ đề / Chương
Bài học
Chủ đề
Choose the best option to complete the sentence.
Noise pollution happens when a sound’s loudness is _______.
more than 30 dBs more than 50 dBsmore than 70 dBs