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What 2 important elements do fertilizers have in them?
I believe Phosphorus and Calcium are the two main elements used in fertilizers. Phosphorus can be very dangerous to the ecosystem as demonstrated in the phosphorus cycle.
Is engraved an adjective?
Yes, it can be (engraved watch, engraved invitation). The word engraved is the past tense and past participle of the verb (to engrave) and can be used as an adjective for something that has been engraved.
Has the past year been good bad satisfactory or otherwise for you and why?
past year has been satisfactory to me and nothing is pending from my side.
What were entertainment in Algeria in the past?
There are many forms of entertainment that used to be popular in Algeria. For example, singing and dancing have long been a part of Algerian culture.
Algerian people use to wear in the past?
in the past what peopel algerian used to wear
What has been used in the past?
what has sulfur been used in the past?what has sulfur been used in the past?
Has the energy source been used in the past?
Yes it has been successful in the past
What has sulfur been used in the past?
Sulfur has been historically used in the production of gunpowder, as a fumigant for pest control, in traditional medicine for skin conditions, and as a component in the vulcanization of rubber.
What is Have been and had been?
"Have been" is used to indicate actions that started in the past and continue in the present. "Had been" is used to indicate actions that were completed in the past before another action occurred.
What is a past participle of been?
The past participle of "be" is "been." It is used to form the present perfect tense and the past perfect tense in English grammar.
Has biomass energy source been successfully used in the past?
Yes it has been successful in the past
What is the different between the have and have been?
Have is used for present and Have been is used for past continous.
What is the past participle of use?
Used (e.g "It had been used for...", "John was used", etc.)
Why Ammonium molybdate is used in test for phosphorus?
Ammonium molybdate is used in the test for phosphorus because it forms a yellow complex with phosphorus, which allows for the colorimetric determination of phosphorus levels. This reaction is commonly used in spectrophotometric methods to quantify phosphorus in various samples.
Describe one way that radioactive isotopes have been used in agriculture?
Radioactive isotopes have been used in agriculture to measure uptake of nutrients by plants. For example, radioactive phosphorus can be used to track the movement of phosphorus in soil and its absorption by plants, providing valuable insights into nutrient cycling and plant nutrition.
What does 'been' mean?
"Been" is the past participle of the verb "to be." It is used to indicate that something has happened or existed in the past.
Is been a verb?
"Been" is the past participle of the verb "be," used to indicate a state or condition that was present in the past.
