Over-watering, under-fertilized, possibly animals doing their business on the grass, another plant stealing their water supply, it could be too hot or too cold... and those are all the reasons I can think of.
lack of photosynthesis
Yellow (Less green)
If you cut your own grass and leave the cut grass on your lawn it acts like a self fertilizer
That is the grass dying. Plants need sunlight in order to photosynthesize. Covering grass with a board is depriving it of sunlight.
I don't think they are eventually covered with soil and grass.
A Moor is a treeless landscape covered with grass and heather.
There are many products that can help you replace the nutrients that the grass is losing and causing yellow spots. You can also rip up the yellow grass and put down grass seed.
It is covered in grass which made the grass for food.
ear pizza
Dry grass looks yellow in colour because it has lost its moisture content.
It takes about two months for covered grass to die. Covering grass with cardboard and organic mulch is a good way to effectively kill grass and create rich soil at once.
they dont get sunlight
grass or sand