Question

Помогите решить задачу из ВПР. Площадь Каспийского моря меняется в зависимости от сезона.Например,когда уровень водной поверхности находится на отметке 27м,то водоем занимает площадь в 370 тыс.кв.км.Это практически 45 процентов от объема пресноводных озер на земле.Объем воды 69400 км в кубе.Каспий также имеет неоднородную глубину.На севере максимальная глубина около 25 м,а средний показатель в пределах 4 м.На юге 1025 м.Это третий показатель в мире среди озер .Предположим,что завод незаконно будет спускать отходы в море по 800 л. в час по 12 ч.в день круглый год.Будет ли заметно увеличение объема воды в море,вызванное деятельностью завода в течение 5 лет.Ответ обоснуйте.

Answer 1

Объяснение:

800 литров = 0,8 м³

0,8*12*365*5 = 17 520 м³ за 5 лет.

Объём воды 69 400 000 000 000 м³.

Очевидно, что объём отходов крайне мал по сравнению с объёмом воды в Каспии, поэтому увеличение объёма воды будет незаметным.

Answer 2

The Problem:

The problem states that the area of the Caspian Sea varies depending on the season. When the water level is at 27 meters, the sea occupies an area of 370,000 square kilometers, which is approximately 45% of the volume of freshwater lakes on Earth. The volume of water in the Caspian Sea is 69,400 cubic kilometers. The sea also has varying depths, with a maximum depth of about 25 meters in the north, an average depth of 4 meters, and a depth of 1025 meters in the south. The problem assumes that an illegal factory will discharge waste into the sea at a rate of 800 liters per hour for 12 hours a day, year-round. The question is whether there will be a noticeable increase in the volume of water in the sea due to the factory's activities over a period of 5 years.

Analysis and Solution:

To determine whether there will be a noticeable increase in the volume of water in the Caspian Sea due to the factory's activities, we need to calculate the total volume of waste discharged by the factory over 5 years and compare it to the volume of the sea.

First, let's calculate the total volume of waste discharged by the factory in one day: - The factory discharges waste at a rate of 800 liters per hour for 12 hours a day. - Therefore, the total volume of waste discharged in one day is 800 liters/hour * 12 hours = 9,600 liters.

Next, let's calculate the total volume of waste discharged by the factory in one year: - The factory discharges waste at a rate of 9,600 liters per day. - Therefore, the total volume of waste discharged in one year is 9,600 liters/day * 365 days = 3,504,000 liters.

Now, let's calculate the total volume of waste discharged by the factory over 5 years: - The factory discharges waste at a rate of 3,504,000 liters per year. - Therefore, the total volume of waste discharged over 5 years is 3,504,000 liters/year * 5 years = 17,520,000 liters.

To determine whether this increase in volume will be noticeable, we need to compare it to the volume of the Caspian Sea, which is 69,400 cubic kilometers or 69,400,000,000,000,000,000 liters.

Comparing the volume of waste discharged by the factory (17,520,000 liters) to the volume of the Caspian Sea (69,400,000,000,000,000,000 liters), we can see that the increase in volume due to the factory's activities is negligible.

Therefore, it can be concluded that the factory's activities will not cause a noticeable increase in the volume of water in the Caspian Sea over a period of 5 years.