What is the pOH value of 0.0000877 M HCL

In which of these cases are the two wave points considered to be in phase with each other?

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as