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You can use which when you have a very small or limited field to choose from. Certainly use which, not what, when there are only two choices, or if both speaker ... Sep 22, 2021 ... The WHO Air quality guidelines are a set of evidence-based recommendations of limit values for specific air pollutants developed to help ... May 16, 2024 ... In this session, the WHA agreed to establish an Intergovernmental Negotiating Body to draft and negotiate “a WHO convention, agreement, or other ... Following the adoption of R2P at the UN World Summit, in 2007 the UN Secretary-General addressed a letter to the President of the Security Council in which he ... Jan 11, 2023 ... The main English interrogative pronouns are what, which, who, whom, and whose. An interrogative pronoun normally appears at the start of a ... What is the difference between a refugee and a migrant? A refugee is someone who has been forced to flee conflict or persecution and has crossed an ... Oct 8, 2011 ... It can be any colour at all. Which is your favourite colour? There is a specific set of colours and you can only choose from the set. We're working around the world to protect the lands and waters on which all life depends and fight climate change. Join us ... What We Do. To make the highest ... Jun 12, 2019 ... Summary: What or Which? · Generally, when a question is open to many answers, it is better to use what. For example, asking What shall we do ... An interrogative word or question word is a function word used to ask a question, such as what, which, when, where, who, whom, whose, why, whether and how.