Among the various derivatives of phenoxyacetic acids, 2,4-D (salts and esters) and MCPA (salts) are widely used as herbicides ...

Photosynthesis -- mainly carried out by plants -- is based on a remarkably efficient energy conversion process. To generate chemical energy, sunlight must first be captured and transported further.

A cottage garden is full of gorgeous flowers without a perfect manicured lawn or landscape. These perennial and annual ...