Arctic ocean has a little biodiversity as compared to the other oceans. It is completely covered with ice in winters and partly covered in other seasons. Due to very low temperature, the natural life is very limited in the ocean. Moreover, global warming is further damaging its ecosystem.
2. An indicator shows if the top of the map is north, is the correct answer.
Other answers:
1. Lines could be considered symbols, but an indicator on a map is more of a symbol.
3. An image of a man and a woman representing the location of the restrooms maybe a better symbol, but it's not an example that helps us understand maps.
4. A title describes the map, but isn't really a symbol.
Hope this helps!
The answer is horses, cattle and pigs
