It depends on the conditions. If you were hoping for a definite answer like "20 years" or something, sorry.
Ester linkages do hydrolyze in mildly acidic conditions, which can be reasonably expected in a landfill, so polyesters will, eventually, break down. How quickly depends on how acidic it is and exactly what form the polyester is in. In the form of small fibers... say, a shirt... it will degrade rather more quickly than if in the form of solid pieces like a soda bottle.
No it won't a because photodegradable means it will break down if exposed to sunlight, but since it is in a land fill there won't be much exposure to the sun, so that means it will slowly break down in the land fill.
Styrofoam it takes thousands of years to breack down in a land fill
No. When it is buried, it is not exposed to sunlight. Sun does not shine underground.
Using biodegradable products, that is, materials that will break down easily in the soil, we are cutting down on pollution (from detergents and chemicals) and land fill stagnation (where landfills are full of plastics and material that will take hundreds of years to break down). == ==
no
Tornadoes can cause soil erosion, though it is usually not significant except in extremely violent tornadoes. So in that sense they break it down.
A tsunami may affect the land by damaging plants, trees, buildings can break down and beaches.
Land fill is the contents of your trash can.
Yes, if you land on it/ catch yourself with that hand.
landform
The fill that goes into land fill sites is human trash.
methane