Вопрос № 1056169 - Экология

Nitrogen-based chemical fertilizers are used in agriculture and gardening to grow fruits and vegetables. Nitrate content in potatoes equals 50 mg/kg, in cabbage – 100 mg/kg, in carrots – 100 mg/kg. Daily person’s requirement for these products is as follows: potatoes – 0,2 kg, cabbage – 0,04 kg, carrots – 0,1 kg. Thus the total daily nitrate intake a person consumes with food equals ____ mg/kg. (Give your answer as a whole number.)

Варианты ответов

Вариантов нет (ответ точный)

Тип вопроса: Ответ точный (без вариантов)

Правильный ответ

Ответ на этот вопрос уже получили: 1 раз(а)

Помогли ответы? Ставь лайк 👍

Расскажи другу:

Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 18:03
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 18:03

Вопрос № 1056228

Rural population tend cattle and small ruminants close to zinc-lead enterprise. In the grazing land there is high concentration of lead (Pb). In ground waters (mine wells) the average concentration of lead reaches 0,6 mg/l. The concentration of lead (Pb) content in meat is 2 mg/kg, in milk it is 0,3 mg/l, in bread – 0,6 mg/kg, in potatoes – 1 mg/kg. Person’s daily requirement for products is as follows: drinking water – 2 l, meat – 0,1 kg, milk – 0,8 l, bread – 0,1 kg, potatoes – 0,3 kg. Admissible daily lead (Pb) intake recommended by World Health Organization equals 0,43 mg. Actual lead (Pb) daily intake coming with water and food is ______ mg. (Give your answer as a whole number.)

Вопрос № 911755

Прочитайте текст и ответьте на вопрос:
What is it also important to have for dinner?
There is no doubt that dinner is the biggest meal of the day. It consists of several courses. For the first course you may have some soup – noodle, mushroom or cabbage soup, or may be some fish soup for a change. For the main course you may have meat, chicken or fish dishes, for example steak or fried fish with spaghetti or potatoes (boiled or fried). It is also important to have vegetables – green peas, carrots, tomatoes, cucumbers. For dessert you may have some fruit, fruit juice, or just a cup of tea with a slice of cake. In many houses the midday meal is the chief one of the day, and in the evening people have much simplier supper – sausages, beefsteak, eggs, or just bread and cheese, a cup of cocoa or stewed fruit, and nuts.

It isn't important to have green tomatoes, cucumbers.

It is also important to have mushroom or cabbage soup.

It is also important to have eggs and nuts.

It is also important to have green peas, carrots, tomatoes, cucumbers.

Другие вопросы по предмету Экология

Вопрос № 1056170

1 hectare of forest annually produces as much as 28 tons of oxygen. 12 million hectares are annually clear cut. Thus our Planet annually receives ____ mln. tons of oxygen less than it’s due. (Give your answer as a whole number.)

Вопрос № 1056171

In the picture you can see a young dying heron in the contaminated-oil bushwoods after oil dumping in the Barataria Bay on 23 May, 2010. The following factors cause massive bird kill in the ocean after oil dumping.

birds become visible to the predators and lose sight (ability to see well)

oiled feathers start trapping heat and bird s dye from overwarming

feathers lose their heat trapping ability and bird s dye from overcooling

while trying to remove oil from its feathers a bird swallows some oil, consumes contaminated food and water , breaths in evaporations and eventually dies from intoxication