cuales efectos tiene la transferencia de energia y el flujo de materia en el sistema tierra​... necesito ayuda rapid

With these question would be nice i needs them in a hurry which nation leads eastern europe in nuclear energy usage? a ukraine b lithuania c slovakia d solvenia which eastern european nation is popular with skiers? a czech republic b estonia c bulgaria d none are

In the scramble for africa, european powers drew boundaries and created states that benefitted the colonizers while ignoring the needs of the local populations. what effects did this policy have on the indigenous people following independence?

Agriculture is a. slowly being replaced by mining as the primary industry in southern africa c. not possible in southern africa because of drought b. the primary industry in southern africa d. none of the above