Explanation:
A common way to clear icy roads is to apply a layer of salt, which lowers the freezing temperature of water and melts the ice.
The number of producers is more than consumers and top carnivores in ecosystem. for example:- in the food chain of grass--goat--man,atleast 90% of energy is pasted to other level and 10% will be stored at that level it self.
grass goat man
50/100 40/80 30/60.
as we human beings depend on plants and animals for our food for our whole life we need atleast 100 numbers of small plants for one week.
Grapes are a healthier choice because THEY PROVIDE FIBERS AND PHYTOCHEMICALS.
Grapes are natural fruits which possess more nutrients and beneficial components much more than manufactured artificial drinks. Fruits have fibers which purge one's system and make it easier for one to eliminate wastes, it also have a lot of natural phytochemicals that have beneficial effects on human system.