サ行変格活用に助動詞の｢させる｣は付属しないのですか？「せる」だけですか？

掃除させる。って助動詞の｢せる｣か｢させる｣どちらが付属しているのですか？

昨日、プールで泳いだ。の｢だ｣って助動詞ですか？それとも、動詞の活用形ですか？

化学式でAg2O(酸化銀)やCuO(酸化銅)など、酸素の化学式はO2なのに、なぜOだけなのですか？

少し量が多いですが今日中に回答していただけると幸いです。お願いします。

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【2】を教えてください

| 以下の本文を読んで、後の問いに答えなさい。 eve where chocolate comes from? Chocolate is made from cacao beans. (の平均して), and more than 70 percent are from Ghana. In West Africa, cacao farmers are verv poor because their cacao beans are sonv low prices. Therefore, many parents cannot send their children to school. Also, often make their children work on cacao farms to help them. (Oによれば) UNICEF, ( ④の数) such children is about 50,000. Moreover, しn children working on the farms do heavy physical labor. twenty-kilogram baskets full of cacao beans on their heads all day long. A(6解決法) to this ( ®間題 ) is the fair trade system. This ( ©新しい) systeIn Is based on partnership between producers and companies that buy their cacao beans. It guarantees a minimum price for the beans, so the trading conditions are better 101 poor famers. This ( ®許す ) them to receive a higher income and improve their lives. (O結果として), their children do not need to work on the farms and can go to school. (O消費者)also play an important ( ①役割 ) in the fair trade system. It offers them a way to reduce ( ®銭困) through everyday shopping. Fair trade products are usually labeled with a fair trade mark. and sometimes even at convenience stores. shopping can make a difference. When you buy chocolate next time, you should give a little more thought to its bitter truth. For example, they carry Therefore, you can find them easily at shops, Your wise choices through everyday

一文目の訳で、制約を受けると書いてあるのですがどこから出てきたんですか？

We are creatures of the visible and the perceivable. f sometming cannot be seen or felt, we imagine it does not exist. We feel pity for the physically disabled, because we can see his twisted limbs, but we are indifferent to the emotionally troubled, because their troubles are buried inside their head. (京都産業大)

意味が通るように削除すべき一語を答える問題です😭 教えていただきたいです🙏

Evidence of the physical effects of living in poverty shows that damage to prove a child's prospects begins before birth and continues through childhood.

(3)教えて下さい

さは( の )Nであり,底面の面積は( ② )m°である から,底面にはたらく圧力は( 3 ) Paとなる。 ロ 2 く圧力〉図2のような水を入れたペットボトル(質量1.2kg) L を準備し,図3のように,厚いスポンジの上に,重さが無視でき る板をのせ,その上に置いた。板の面積を変えてスポンジのへこ みを調べると, 表1のようになった。ただし,100gの物体には たらく重力を1Nとする。 ふたの面積 5cm? 水を入れた ペット ボトル 1.2kg 1.2kg 水 板 底の面積 100cm スポンジ 図2 図3 表1 板の面積[cm) 10 20 30 50 x スポンジのへこみ[cm]| 3.0 1.5 1.0 0.6 0.5 (1) 図2のようにペットボトルを机の上に置いたとき,ペットボ トルが机に加える圧力は何Paか。 (2) 図2でペットボトルをさかさまにしてふたの方を下に置いた とき,圧力は(1)のときの何倍になるか。 (3)(文章記述 表1のように,板の面積が大きくなると,スポン ジのへこみが少なくなる。その理由を書きなさい。 (4) 表1のxにあてはまる数値を答えなさい。 (5) 板の面積が50cmのとき, スポンジのへこみを3.0cmにした い。板の上にのせるペットボトルを何kgにすればよいか。 ものさし

score lotusのcoとloって発音一緒ですか？