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In English, less and less people use the subjunctive, so it can be hard for us to recognise when it is needed in Spanish. However, we can generally follow this rule: when there is any level of doubt or un...

A waterfall is created due to the banding of rocks with varying hardness and softness. The harder rock (granite) is more resistant to erosion and so erodes at a different speed to the soft (sandstone). Th...

Firstly, an enzyme is a specific protein with a unique shape. The main aim of an enzyme is to CATALYSE a reaction. This means, the reaction is sped up, but the concentrations of reactants or products are ...

私は南東中国に位置する香港で生まれ育った。高層ビルが立ち並ぶ街並み、伝統的な商店街から高級ブランド店まで様々な店があり、買い物好きには一度は行きたい場所の一つ。しかしこの近代的な香港の裏側には広々とした自然が広がっている。ピークトラムに乗ってビクトリアピークから眺める景色や九龍公園の自然は忘れられない。更に香港はクリスマス、中秋節や新年など年中伝統的な祭りやイベントが行われ、季節によって色々なものが楽しめ...

When entering a new market, firms may adopt penetration pricing to encourage sales. This is when the price of a product is low when it enters a market, and is increased as it saturates the market. This is...