Most inorganic fertilizers contain balanced amounts of nitrogen, potassium, and phosphorous to feed plants and to foster growth. These substances often derive from chemical processes such as urea, ammonium sulfate, and calcium nitrate.
The Chromebook weighs under 1.13 kilograms and has a battery life of under six-and-a-half hours, which is better than Intel-based Chrome laptops. The Samsung Chromebook models have a standard of 16GB of storage, a webcam and USB ports. Samsung has also extended the Chrome OS to its $550 Series 5 laptop, which has a 12.1-inch screen. Based on an Intel Celeron processor, it has 16GB of storage, 4GB of memory and USB 2.0 ports.
This document describes how to use the USB API to communicate with USB devices. Some devices are not accessible through the USB API (see the Caveats section below for details). Chrome Apps can also connect to serial and Bluetooth devices.