What is a freemium policy in the context of a social networking site? a. users are not charged for the first year and are charged an annual fee thereafter. b. users are charged till they acquire certain number of contacts, after which the service becomes free. c. users are charged until they contribute a specified number of times to discussions. d. users are charged depending on the number of features they use. the right answer is "d"

it is a part of john locke's natural rights popular during the age of enlightenment that people had inalienable rights to life, liberty and property. this was reflected by thomas jefferson in his declaration of independence as rights to life,liberty and the pursuit of happiness.

another line in the declaration of independence is that people have certain rights just because they are human. humans are capable of obeying the three natural rights john locke mentioned making them governable by these laws and therefore entitled to these rights as well.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.