In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

Marketing Research Process is a systematic method for planning and executing market research projects to inform business decisions.

The 5 Step Marketing Research Process :

1. Define the Problem or Opportunity
2. Develop Your Research Plan
3. Collect Relevant Data and Information
4. Analyze Data and Report Findings
5. Take Action.

Gravitational force is the force that binds everything at the surface of the earth. Gravitational force is maximum at Poles.

Gravitational force is the force that binds everything at the surface of the earth. It holds at what distance from the earth is gravity zero. 

Here are the differences between Diamond and Graphite :

From the above analysis, Diamond is harder than Graphite because of the difference of crystalline structures.

Electrical burns occur principally because of the heat generated by the flow of electrical current through the body.

Burns caused by electricity are divided into three types:

electrical burns,

arc burns, and

thermal contact burns.

Electrical burns can result when a person touches electrical wiring or equipment that is used or maintained improperly.

Sales promotion uses both media and non-media marketing communications for a pre-determined, limited time to increase consumer demand, stimulate market demand or improve product availability.

Sales promotions include Coupons, Rebates, Free Samples, etc... Online Ads come under advertising form.

When backed by buying, power wants become demands.