Answer:
1.Mercury, Venus, Earth and Mars
2.global warming and climate change; water pollution and ocean acidification; and loss of biodiversity.
3.
Answer:
3
Explanation:
there are 3 arrows going which means it has 3 rays........
The Klyuchevskaya volcano is in the Kamchatka Peninsula of Russia and the highest active volcano of Eurasia. Its steep, symmetrical cone towers about 60 mi from the Bering Sea.
I hope this helped!