The phrase "activities refer" is not correct and lacks clarity in written English.
It may be intended to indicate that certain activities are being referenced or discussed, but it needs additional context or structure to be usable.
Example: "The activities refer to the various programs we offer throughout the year."
Alternatives: "activities pertain" or "activities relate".
Intangible activities refer to R&D and supplier management.
E-commerce activities refer to the activity of buying and selling by a company through the e-commerce platform.
Reverse logistics activities refer to the recovery and processing of unused products and to the redistribution of reusable materials.
These activities refer to the inherent chemical activity obtained by normalizing the oxidation current to the active surface area determined by COad-stripping.
It is also stated that "vigorous physical activities refer to activities that take hard physical effort and make you breathe much harder than normal"; and that "moderate activities refer to activities that take moderate physical effort and make you breathe somewhat harder than normal" http://www.ipaq.ki.se/ipaq.htm.htm
Based on this description, one can say that experienced VET teachers perceived their professionality as being much wider than only the classroom-based perspective and their activities refer to professional collaboration.
Please note that, due to the nature of the Overall Prize, the Overall Winner and their companion will need to be in sufficiently good health in order to participate in the type of trip and activities referred to above.
In particular, the Overall Winner will need to arrange and pay for their own passport, visas and travel insurance sufficient for the type of expedition and activities referred to above.
An article last Sunday about spyware, software that allows pop-up ads or monitors computer users' activities, referred incorrectly to Shockwave.com, which offers games and other software online.
Because of an editing error, an article yesterday about Iran's rejection of calls to halt its nuclear activities referred incorrectly in some copies to a United Nations official who described the reaction of Secretary General Kofi Annan.
Please note that, due to the nature of the Overall Prize, the Overall Winner will need to be in sufficiently good health in order to participate in the type of expedition and activities referred to above.
