A positive correlation does not necessarily indicate a causal link, and a negative correlation does not necessarily indicate a causal link. Option A
<h3>What is correlation?</h3>
In research, correlation often indicates that some kind of relationship does exist between the variables. This does not actually mean causation. The correlation could be positive or negative.
It should be known that; a positive correlation does not necessarily indicate a causal link, and a negative correlation does not necessarily indicate a causal link. Option A
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<h2>Work done = mgh </h2>
Explanation:
- In this case, while lifting the book we are working against the force of gravity.
Using the Newton's laws, we can find the force F required for lifting the book having mass (m) and acceleration due to gravity (g) that is ;
and, the change in the position of the book that is Δx (Height)
→ Δx = Final position - Initial position
which is only the height, then the amount of work done will be calculated by :
W= mgh
m = Mass of the Body
g = Acceleration due to Gravity
h = Height of Body being displaced
Answer:
C
Explanation:
For an organism scientific names the first part is the genus and the second is the species
Answer:
12.6 L CO2
Explanation:
Mass = 24.7 grams
Molar mass = 44.01 g/mole
Volume at STP = ?
The relationship between these quantities is given as
Number of moles = Mass / Molar mass
Number of moles = 24.7 g / 44.01 g/mole
Number of moles = 0.5612 moles
1 mol = 22.4 L
0.5612 mol = x
x = 0.5612 * 22.4
x = 12.6 L
Answer:
A
Explanation:
One of the main complaints about hydropower is that it will change the ecosystem. You can read about the history of any dam and you will find that most of them have involved evacuation. That means that farmland was lost and replaced by a lake behind the dam. The energy comes from water cascading over the top of the dam to its bottom.
It does not produce radiation.
It does not burn fossil fuels. It's clean and does not pollute the air.
So there are no greenhouse gases involoved.