1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MArishka [77]
4 years ago
9

Which of the following is a direct observation? A. Music may help plants grow B. The plant is 22cm on day 23 C. two plants must

have died from insects D. The plants will likely grow 2cm per day 2. A new fertilizer is being tested to determine if it will help plants grow. Each day the researcher gives fertilizer to half the plants and measures the height of all plants. This is an example of which step in the scientific method? A. Ask a question B. Conduct the experiment C. Form a conclusion D. From a hypothesis
Chemistry
2 answers:
Marizza181 [45]4 years ago
8 0
The answer is B for number 1 because rather than it being an observation it is something that you know for sure happened without guessing. 

the answer is B the researcher is actually adding the fertilizer and measuring it.
s344n2d4d5 [400]4 years ago
8 0

Answer:

The correct answer will be options:

1. option-B

2. option-B

Explanation:

<u>Case I </u>

Making an act of direct observation is a way of collecting information in which the observer observes a natural behavior in its natural environment without making assumptions.

In the given questions, the case of direct observation will be when the height of the plant is measured on 23rd day. Thus, Option-B is the correct answer.

<u>Case II </u>

In the given question, the researcher wants to determine the effect of fertilizer on the growth of the plant so he decides to perform an experiment by giving fertilizers to plants.

This is an act of performing an experiment and thus Option-B is the correct answer.

You might be interested in
A 30-kg girl and a 25-kg boy face each other on friction-free roller blades. the girl pushes the boy, who moves away at a speed
dsp73
0.83 m/s seems the correct answer, hope it helps
6 0
3 years ago
A ground test utilizing an auxiliary current electrode and an auxiliary potential electrode is known as the______.
kompoz [17]

Answer:

The three-point test

Explanation:

The three-point test refers to a ground test utilizing an auxiliary current electrode and an auxiliary potential electrode.

7 0
2 years ago
What is required for an electron to move between energy levels?
Bingel [31]
It required a fixed finite amount these zones are known as energy levels
4 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!! NEED THE ANSWER FAST! WILL CHOOSE THE BRAINLIEST!!!
Vlad [161]
Remember that a cation will be smaller than its neutral atom, and an anion will be larger than its neutral atom. This would automatically eliminate answer choices A and D.

Also keep in mind that atomic radii decreases from left to right as you move along a periodic table. It also decreases from bottom up. 
Atomic radii increases as you move from right to left and as you go from up to down.

As bromine is higher up in the periodic table than Iodine, it would have a smaller radius. Iodine would have a larger radius.

The correct answer is B. Br
8 0
3 years ago
3. Scientific methods may include three steps of study as listed below. Explain each step in detail with a complete content rela
victus00 [196]

Answer:

Hypothesis is an assumption or idea about a particular topic or argument. An hypothesis should be one which is able to be tested and measurable to determine its authenticity.

A theory is an explanation of a scientific observation which has undergone series of experiments and is reproducible in any part of the world.

A law is simply a rule which gives an in depth explanation of a scientific finding. If new findings emerge the law could be changed or modified.

8 0
3 years ago
Other questions:
  • The compressibility factor of any gas at a specific value of reduced temperature, T Tc, and reduced pressure, P Pc does not have
    12·1 answer
  • Which of the following accurately describes carbon atoms?
    7·1 answer
  • If it takes 43.32 mL of 0.1 M NaOH to neutralize a 50 mL HCl solution, what is the molarity of HCI?
    10·1 answer
  • What is an orbital?
    11·2 answers
  • What number represents water becoming water vapor in this diagram
    5·2 answers
  • Put atom in order from most to lest​
    10·1 answer
  • PLZ GO TO MY PAGE ND ANSWER MY QUESTIONS BOUT CHEMISTRY DUE TMMR HELP ASAP
    14·1 answer
  • 2.<br> Number that indicates the charge for each family.
    9·1 answer
  • What does the zebra mussel do to affect the ecosystem
    6·1 answer
  • Which molecule is polar, based on structure?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!