Answer: A tsunami is a giant wave (or series of waves) created by an undersea earthquake, volcanic eruption or landslide. Tsunamis are often called tidal waves, but this is not an accurate description because tides have little effect on giant tsunami waves.nswer: A tsunami is a giant wave (or series of waves) created by an undersea earthquake, volcanic eruption or landslide. Tsunamis are often called tidal waves, but this is not an accurate description because tides have little effect on giant tsunami waves.
Roundup is not persistent in the soil. You can lay your sod one week after spraying the weeds. The herbicide will get into the growth of any plant it touches, not anything the chemical does not touch. I don't know of a pre-m herbicide that controls germination of any weeds likely to grow this time of year. Pre-m only prevents weed seeds from germinating.
1 My experience is that Roundup provides poor liverwort control (which of course can only be used on nursery floors, and not in containers). 2  Acetic acid (5%) provided excellent liverwort control, and can be used as long as you use products containing vinegar that are legally labeled for weed control.. My experience is that Roundup provides poor liverwort control (which of course can only be used on nursery floors, and not in containers). 2  Acetic acid (5%) provided excellent liverwort control, and can be used as long as you use products containing vinegar that are legally labeled for weed control..