It was formed from the remains of ancient plants and animals.
In your cells blood picks up carbon dioxide and releases oxygen. ... They produce oxygen during a process called photosynthesis. During photosynthesis green plants manufacture the sugar molecules fructose and glucose. Green plants use energy from sunlight to build sugar molecules from carbon dioxide and water.
In physic speed is defined to as scalar quantity which is defined to as the rate at which an object covers object. The speed of an object is the magnitude of its velocity. spend has no direction and is measured how a object move relative to a reference point.
