Black And White Versus Color Photography.
As anyone who has been a photographer for very long will tell you, there are times when black and white is more appropriate for a picture than color. Black and white photography offers more options in terms of contrast and using various filters for more dramatic effects. However, there are no hard and fast rules. Each photographer should have his or her own approach to a subject.
Landscapes can be great subjects to shoot in black and white, bringing into focus the forms, shapes, and adding dimension to the subject. Though not an absolute, color tends to be a better choice for subjects such as weddings as well as subjects known for their bright colors. Flowers would be a good example.
When the subject of your photo is a person or persons, both black and white and/or color can have a striking effect. Try to consider the mood of the subject when choosing, and which effect you want the photo to have.
Black and white photography seems to add a sense of timelessness and comfort, while color seems to add life to the subject matter.
Both black and white and color have their benefits and the more experience you have in photography will help you decide which is more appropriate for the subject you are shooting.