carbon
hydrogen
Explanation:
From the given choices, carbon and hydrogen are considered to have a relatively weak degree of electronegativity.
Electronegativity of an element is the tendency with which the atoms of the element attracts valence electrons in a chemical bond.
- Oxygen and nitrogen are highly electronegative elements having a strong attraction for electrons in covalent bonds.
- Carbon and hydrogen have considerably low electronegative values.
According to the Pauling's table showing electronegativities of elements,
N - 3.0
O - 3.5
C - 2.5
H - 2.1
therefore the order of increasing electronegativity is:
H < C < N < O
learn more:
Elecctronegativity brainly.com/question/11932624
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I think the answer to the question is b
Answer:
4.they are made up of DNA wrapped around proteins
Independent variable - juice
Dependent variable - stacks of paper made
Control - group B
Constant - Task
<h3>Research variables</h3>
In every scientific investigation, there are different variables. These include:
- Independent variables: These are the variables that are supplied by the researcher and often varied to produce different effects. It is often referred to as the 'cause' variable.
- Dependent variables: These are variables that are measured in the course of research. They are a result of the effects of the independent variable on the experimental subjects or groups. They are otherwise known as 'effect' variables.
- Constant variables: Variables that are applicable to all experimental groups and are usually kept constant.
Also, there are different groups in research:
- Control group: The reference group. The group that is not fed with the independent variable and forms the basis for comparison in order to understand the effects of the independent variable.
- The experimental group: The group that is fed with the independent variable.
More on research variables can be found here: brainly.com/question/25115889
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