Question

Помогите, плиз Экологические задачи по биологии 1 га елового леса может задержать 30 т пыли на год. 1 га леса в среднем выделяет 200 кг кислорода на год. Подсчитайте сколько тон пыли за год может задержать еловый массив площадью 120 га? Сколько кислорода он выделит?

Answer 1

120*30=3600т пыли
120*200=24000кг

Answer 2

Calculation of Dust Retention by a 120-hectare Pine Forest

To calculate the amount of dust that can be retained by a 120-hectare pine forest in one year, we need to use the given information that 1 hectare of pine forest can retain 30 tons of dust per year.

First, we calculate the total area of the pine forest in hectares: 120 hectares

Next, we multiply the area of the forest by the amount of dust retained per hectare: 120 hectares * 30 tons/hectare = 3600 tons

Therefore, a 120-hectare pine forest can retain approximately 3600 tons of dust per year.

Calculation of Oxygen Production by a 120-hectare Pine Forest

To calculate the amount of oxygen produced by a 120-hectare pine forest in one year, we need to use the given information that 1 hectare of forest produces 200 kg of oxygen per year.

First, we calculate the total area of the pine forest in hectares: 120 hectares

Next, we multiply the area of the forest by the amount of oxygen produced per hectare: 120 hectares * 200 kg/hectare = 24000 kg

To convert kilograms to tons, we divide by 1000: 24000 kg / 1000 = 24 tons

Therefore, a 120-hectare pine forest can produce approximately 24 tons of oxygen per year.

Please note that these calculations are based on the given information and assumptions about the dust retention and oxygen production of a pine forest.