нужно указать какие ошибки в предложениях

One of the most painful problems of our time is environmental pollution. It is dangerous because it does not know the borders of states, so pollution of land, air, seas, rivers and especially the oceans harms many countries, not just the country whose businesses are polluters of nature. That is, everyone suffers from the actions of individual states. Therefore, environmental pollution is a global problem.People need to meet their needs for food, clothing, household items. The problem is that the desire to reduce the cost of production of various goods often leads to savings on treatment plants. This leads to pollution of the environment, which has already reached alarming proportions.In my opinion, if humanity wants to continue living on our planet, it must join forces in the struggle for a clean environment. We have one planet, and if we destroy nature, we will all perish, because people are part of nature, although they often forget about it. If humanity spoils the environment, our descendants will have nowhere to live. Therefore, all countries must contribute to the cause of environmental protection.

Our autumn holidays have been a lot of fun, however, as usual!We went to school, preparing for the 100th anniversary of our Lyceum. But the number 1, we decided to get out into nature, or rather, we have won a certificate for a free trip to the zoo, it turned out we only really when we tried to intellectual marathon. In his Lyceum, we have a winner-class, so we have awarded this certificate.Zoo we have a very large, and since it was cool outside, then all the animals we could not see. We saw a variety of birds and hear them singing, admired the king of all animals - a lion, a number had tigers, polar bears reached after went to the pavilion with tropical animals seen and tropical fish. After many already frozen, so we decided to go with the girls in the cafe to warm up, to talk, etc.In general, a campaign like we walked a bit and relax from the bustle of the city ...Наши осенние каникулы очень весело, в прочем, как обычно!Мы ходили в школе, готовились к 100-летию нашего лицея. Но 1 числа мы решили выбраться на природу, точнее мы выиграли сертификат на бесплатный поход в зоопарк, это получилось у нас только когда мы очень постарались на интеллектуальном марафоне. В своем лицее мы стали классом-победителем, поэтому нас наградили этим сертификатом.Зоопарк у нас очень большой, а так как на улице было прохладно, то на всех зверей нам не удалось посмотреть. Мы увидели различных птиц, послушали их пение, восхищались царем всех зверей - львом, рядом были тигры, дошли до белых медведей, после отправились в павильон с тропическими животными, увидели и тропических рыб. После многие уже замерзли, вот мы и решили сходить с девчонками в кафе, чтобы погреться, поговорить и т.д.  В общем, поход понравился, мы погуляли и немного расслабились от городской суеты...