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
shutvik [7]
3 years ago
5

Students are experimenting with a substance that they think can be added to soil to increase the number of flowers a certain pla

nt will make. They set up 20 pots of soil, each planted with the same type of seed. They divide the pots into two groups and add 15 drops of the substance to pots in one group and only 10 drops to pots in the other group. After the plants grow for four weeks, the students count how many flowers each plant has made.
What does this experimental investigation lack?

a control group
an independent variable
a dependent variable
a procedure

TROLL ANSWERS WILL BE REPORTED
Physics
2 answers:
professor190 [17]3 years ago
7 0

sorry if im incorrect. I believe its a dependent variable

pashok25 [27]3 years ago
3 0

Sorry if this isn't correct as it's been quite a while since i've learned this subject but I believe that the answer is dependant variable because the dependant variable would be the number of flowers on the plants and everything else seems to be in check

You might be interested in
PLEASE HURRY I HAVE A TIME LIMIT
RideAnS [48]
Properties of electromagnetic radiation and photons. ... we find the types of energy that are lower in frequency ( and thus longer in wavelength) than visible light. Seeee
4 0
3 years ago
The modern periodic table is arranged in order of increasing atomic
tankabanditka [31]
The periodic table is in increasing atomic mass. Hope this helped.
7 0
3 years ago
Read 2 more answers
In the 2016 Olympics in Rio, after the 50 m freestyle competition, a problem with the pool was found. In lane 1 there was a gent
Dmitry_Shevchenko [17]

Answer:

Explanation:

A )

speed of swimming in still water is given by the expression

distance / time

= 50 / 25

= 2 m /s

In lane 1 , 1.2 cm/s current is flowing in the direction that the swimmers are going so swimmers will cover distance at the rate of  2 + 1.2 = 3.2 m /s.

time to cover distance of 50 m in lane 1

= distance / speed

= 50 / 3.2 = 15.625 s

In lane 8 , 1.2 cm/s current is flowing against  the direction that the swimmers are going so swimmers will cover distance at the rate of  2 - 1.2 = .8 m /s.

time to cover distance of 50 m in lane 1

= distance / speed

= 50 / .8 = 62.5 s

8 0
3 years ago
The most common liquid on planet earth is
son4ous [18]
The most common liquid on planet earth is water
3 0
3 years ago
Can someone please help me it would mean alot​
Lunna [17]
It’s the wavelength I believe
7 0
3 years ago
Other questions:
  • How does a Geiger counter measure radiation levels?
    12·1 answer
  • Fertilization occurs in the fallopian tubes.
    10·1 answer
  • Two motorcycles travel along a straight road heading due north. At t = 0 motorcycle 1 is at x = 50.0 m and moves with a constant
    13·1 answer
  • Radiation with a wavelength of 238 nm shines on a metal surface and ejects electrons that have a maximum speedof 3.75 X 105 m/s.
    7·1 answer
  • Please help with this conversion question about heat!<br> WILL MARK BRAINLIEST!!!
    13·2 answers
  • The latitude of any location on earth is the angle formed by the two rays drawn from the center of earth to the location and to
    10·1 answer
  • What is due to acids formed when atmospheric and volcanic gases mix with water
    11·1 answer
  • A stationary block of mass 35 Kg is suspended on a string.What is the tension in the string ?( Neglect the mass of the string)
    11·1 answer
  • A flywheel in a motor is spinning at 510 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75
    7·1 answer
  • One of the possible criteria of Schizophrenia is hallucinations.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!