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lesya692 [45]
3 years ago
15

which of the following describes research that would be considered basic science? a. a farmer is trying to improve his crop yiel

ds by using a new kind of fertilizer. b. a college student is curious about the growth of desert plants in the presence of excess amounts of water. c. government officials are trying to prevent the spread of a new strain of influenza virus. d. a doctor is trying to determine why a patient is feeling tired and sick.
Biology
2 answers:
forsale [732]3 years ago
5 0

A professor at a university is observing the mating behavior of freshwater fish.

MakcuM [25]3 years ago
4 0
The correct answer for the question above is letter a.  A farmer is trying to improve his crop yields by using a new kind of <span>fertilizer. It describes best the basic science research because it aims to make the the scientific theories better.</span>
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A cylinder fits inside a square prism as shown. For every cross section, the ratio of the area of the circle to the area of the
dedylja [7]
Area circle = π*r²

Area square = l²

The side of the square is equal to the diameter of the circle

Area square = D²

A diameter is always twice the radius

Area square = (2r)² = 2²r² = 4r²


So this is the rate:

Area circle/Area square = (π*r²)/(4r²)

Area circle/Area square = π/4


Volume is always Area*h when cross sectional area is a constant

Volume Prism = Area Square*h 

Volume Prism =  4r²*h

Volume Cylinder = Area Circle*h

Volume Cylinder = π*r²*h

So far this is option D)


Let’s calculate the rate:

Volume Cylinder/Volume Prism = π*r²*h/4r²*h

Volume Cylinder/Volume Prism = π/4

Volume Cylinder = π/4* Volume Prism

This is also option D)


Now let’s calculate Volume Cylinder from that formula:

<span>Volume Cylinder = π/4* Volume Prism</span>

Volume Cylinder = π/4 *(4r²*h)

<span>This is also option D)</span>

<span>
</span>

<span>So option D) is correct</span>

7 0
4 years ago
Read 2 more answers
Identify the dependent and independent variable in each of the examples below: 1. White mice are fed a treat every time they man
Andrei [34K]

Answer:

1. IV: Time the Bell is rang DV: Time it takes to learn the task

2. IV: Nitrogen fertilizers DV: Diversity of fish

3. IV: Time of radiation DV: Percentage of successful germination

Explanation:

The independent variable of an experiment refers to the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable while the dependent variable is the variable that responds to the changes made to the independent variable.

1. In scenario 1, the TIME THE BELL RINGS is the independent variable because that is what the experimenter controls or has power to change. On the other hand, the dependent variable is the TIME IT TAKES TO LEARN THE TASK because it is the measured variable that responds to the independent variable.

2. In scenario 2, the USE OF NITROGEN FERTILIZER is the independent variable while the DIVERSITY OF FISH is the dependent variable.

3. In case 3, the TIME OF RADIATION is the independent variable while the PERCENTAGE OF SUCCESSFUL GERMINATION is the dependent variable.

8 0
3 years ago
By conserving energy and making energy transformations more efficient, fossil fuel use could be decreased. True or false
professor190 [17]

True

Fossil fuels like coal and petroleum takes millions of years to form. The rate of usage of fossils is not equal to its formation. As the rate of formation is slow it is important to use energy in an efficient way so that it is not consumed in a wrong way. The transformation of energy should be more efficient to avoid the wastage of energy. By doing this we can decrease the consumption of fossil fuels as it cause pollution in the environment. The burning of fossil fuel releases carbon dioxide, nitrogen oxide ,and other harmful gases which is injurious to the health of people. So, the fossil fuel should be used in a decreased manner.

6 0
4 years ago
Read 2 more answers
How is hydrogen bonding responsible for the heat capacity of water?
Anika [276]
Water's high heat capacity is a property caused by hydrogen bonding among water molecules. When heat is absorbed, hydrogen bonds are broken and water molecules can move freely. When the temperature of water decreases, the hydrogen bonds are formed and release a considerable amount of energy
5 0
3 years ago
I need help with this question
suter [353]

Answer:

more complex cell

Explanation:

hope this will help

4 0
3 years ago
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