Answer:
i think the first one is soil
Explanation:
The first one. The use of irrigation.
The correct answer is D. Small nations are less active in world trade.
Explanation
Oceania is a continent made up mainly of islands, among which Australia and New Zealand stand out internationally. However, the rest of the countries are very little known internationally and do not actively participate in trade because they do not have large industries, nor are they sources of natural resources. These islands are mainly considered tourist destinations for their tourist attractions. Therefore, the correct answer is D. Small nations are less active in world trade.
I think that the answer is c, ridges!