2. Plant propagation
5. construction materials
answer:livelihoodplant propagationtreescarbon dioxideconstruction materials
As cellular users change mobile phone frequently, mobile phone recommendation system is of great importance for mobile operator to achieve business benefit. There are essential challenges for researchers to design such system. Among them, a critical one is how to obtain and model user's interest of mobile phone.
From the word paste:
Paste is an operating system and programs action that allows you to copy an object or text from one location and place it to another location. For example, you could copy a URL sent to you by a friend in chat, e-mail, or over an IM and paste that URL into a web browser to visit the web page.