How do you say hydrosphere in Japanese?
— 水圏

Terms within for hydrosphere in Japanese
ocean大洋 (たいよう, taiyō); 海洋 (かいよう, kaiyō); 海 (うみ, umi)
sea海 (うみ, úmi); 海 (かい, kai)
water水 (みず, mizú)
Group relationships for hydrosphere in Japanese
earth地 (ち, chi)
world(Jpan'世界) ((Jpan'せかい), sekai), ワールド (warudo) (slang)