Help ASAP! Which of the following is an indicator of the economic development of a nation?
GNP/GDP
Ethnicity
Language
Male/Female Distribution

GNP/GDP, the other options have nothing to do with the economy :)

Exploration mission 2;

Conditions are more like living on  land  for creatures in the upper part of the intertidal, which is only covered with  water  at extreme high tide, so life is easier on land. conditions are more like living in the ocean for creatures in the lower part of the intertidal which is only exposed to air at extreme low tide. so basically it both worlds of land and ocean.