(a) Recruitment involves searching for prospective employees and stimulating them to apply while selection involves comparing and choosing suitable candidates. 

(b) 

1. On television, products can be demonstrated and their use can be explained. 

2. Advertisement on television has to be repeated frequently. 

(c) Insurance is a means of spreading risks. It involves pooling of risks. A group of people who are subject to an insurable risk contribute regularly and the fund so created is utilised to compensate those unfortunate few members of the group who actually suffer a loss due to some unexpected calamity. In this way, the loss of a few is shared by all members on an equitable basis. Insurance is a social device for pooling and dividing risks among a large number of persons. 

(d) 

1. Marketing research helps to measure market potential, characteristics of the market and share of the market for a particular firm or brand. It tells management where the company stands in industry. 

2. Business firms can use marketing research to study changes in consumers’ tastes and preferences. This information is helpful in making necessary improvements in existing products and in designing and developing new products. 

(e) Environmental Ethics: Ethics is concerned with the principal of right conduct. It is the entire body of moral values and values are the language of ethics. Environmental values refer to the moral standards which people are expected to follow while interacting with nature and its resources. Environmental values make people environmentally conscious.