as good finisher since the difficult bit is having liquid water simonyan you don't just need age to well you need enough atmospheric pressure and atmosphere i mean on the moon there's no atmosphere so there's never been are you left with want to. give birth sat mystere hadn't been dense enough the water would have evaporated into space in the form of vapor. fortunately the gas produced in abundance by the volcanoes maintained enough of an atmospheric pressure for earth to be able to hold onto its early oceans. but the oceans of the young earth soon faced another danger that of freezing over. the sun was still weak 30 percent less bright than it is now earth therefore needed a greenhouse effect to keep its surface warm enough and its water in a liquid state. this greenhouse effect appeared very early on in earth's history thanks to the water vapor and c o 2 abundantly present in the atmosphere. to no 6 today of course we know that c o 2 increased by human activity is a bad thing but too much isn't good but we needed some back there and still do if there wasn't a bit in the atmosphere the

olympic champion caster semenya isn't giving up on her fights compete at this year's tokyo games simonyan is taking her legal case against world athletics to the european court of human rights. i mean as prime minister has accused top military officer is of attempting a coup after they demanded he step down he called brought fountains of supporters out on the streets saying his political future can only be decided by the people the opposition also came out to protest and set up camp outside parliament u.s. state department has called for restraint by all parties the country is bitterly divided over last year's brutal conflict with azerbaijan in the disputed nagorno-karabakh region and it's with reports. in the center of your about on thursday armenia as prime minister was defiant in the face of calls from the military for him to stand down. made by maggie some people want to drag the army into unconstitutional processes this is an attempted coup but the people will not allow a military coup in armenia an estimated 20000 people came out onto the street to the capital after nicol pushing in