The major source of fruits and vegetables in the soviet union under communism were

state-run farms

central markets in moscow

small gardens on private plots

imports from europe

The major source of fruits and vegetables in the Soviet Union under communism were state-run farms called sovkhoz.

Explanation:

A sovkhoz was a collective state farm during the Soviet Union.  In contrast to the collective farms, everything was owned by the state on these farms. The machines were rented from rental companies and the people who worked there were employed by the state.

They were originally formed from state and private agricultural goods since 1919 in order to demonstrate to the farmers the advantages of the community economy. Later they were mostly specialized companies that supplied seeds and breeding cattle to the collective farms. Sovkhoz were also often set up in areas with less natural resources where the risk of harvesting was quite high. As a rule, employees received fixed monthly wages. From the middle of 1950 the number of employees increased considerably. In the 1970s, the Sovkhoz produced almost fifty percent of the total agricultural production in the USSR.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.