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Brums [2.3K]
3 years ago
13

Why do farmers use fertiizers and what is a limiting nutrient?

Biology
1 answer:
arsen [322]3 years ago
8 0
I know why farmers use fertilizers..... to provide nutrition for the plant
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How will you set up a controlled experiment
satela [25.4K]
Research is necessary to gather data that is used to formulate a hypothesis and to create the experiment.

Identify a problem. The problem is the question you are trying to answer. Without a problem, there is no reason for experimentation.

Formulate a hypothesis. The hypothesis is a statement, based on your research, that is intended to provide a solution to the problem. The hypothesis is what you are trying to prove or disprove.

Conduct your experiment to prove the hypothesis. A controlled science experiment is setup to test whether a variable has a direct causal relationship on another.

Identify your independent and dependent variables. The independent variable is commonly known as the cause, while the dependent variable is the effect. For example, in the statement A causes B, A is the independent variable and B is the dependent. A controlled scientific experiment can only measure one variable at a time. If more than one variable is manipulated, it is impossible to say for certain which caused the end result and the experiment is invalidated.

Do not alter your hypothesis midway through the experiment. The setup of a controlled scientific experiment must be constant. You can not make changes once you have begun, even if the results you are getting do not seem to support your original hypothesis. When you change your hypothesis, you change the entire experiment and you must begin again.

Do not be upset if your results are not what you expect. Some of the greatest scientific advances have come from experiments that disproved the original hypothesis.

Start over again with a new hypothesis or find new variables to manipulate. Scientific advancement is a painstakingly slow process and scientists often spend years and even an entire lifetime working on the same problem.
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4 years ago
When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room
julia-pushkina [17]

I'm sorry but I need a little bit more context

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3 years ago
which of the following is a living material that might be found in soil a air b algae c mineral or d silt
marusya05 [52]
It is algae because it is bacteria and bacteria live and breathe.
4 0
3 years ago
If somatic cells are reproduced during mitosis then what kind of cells are produced during meiosis?
leonid [27]
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
5 0
3 years ago
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Derotative righting, labyrinthine righting, and parachute are all examples of:
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<span> Derotative righting, labyrinthine righting, and parachute are all examples of: </span><span>postural reactions.</span>

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