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PIT_PIT [208]
3 years ago
12

Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.

Biology
2 answers:
schepotkina [342]3 years ago
6 0

The right option is; an experimental investigation, because it allows for the control of variables.

The best type of scientific investigation for Bena to use to study this is an experimental investigation, because it allows for the control of variables.

Experimental investigation is a type of scientific investigation in which variables are controlled, modified, and measured in order to obtain facts to buttress or oppose a causal relationship. Experimental investigation includes all the parts of an experiment such as observations, scientific question, hypothesis, procedure, variables (independent and dependent) etc.

seropon [69]3 years ago
3 0
Comparative with a wide range of variables
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Robert places six eggs in a pot of boiling water (100°C) and six eggs in a pot with water at 80°C. He keeps the eggs in the wate
Bad White [126]
The independent variable in this experiment is the time the experiment took. This is because both the temperature and the number of cooked eggs can be affected during the process of the experiment. 

Temperature of the water can be affected by the temperature of the eggs when they are first lowered into the water. This would decrease the temperature of the water, making it a depended variable.

The number of eggs cooked can be affected by the temperature. This would mean that the number of cooked eggs could differ depending on the temperature, meaning that it is a dependent variable. 
7 0
3 years ago
which of the following method is used to prevent soil erosion? tilling, contour farming, fertilizer, worms
Verizon [17]

Answer:

contour farming

Explanation:

Contour farming is the method of growing crops on sides of hills, mountains and steep slopes by planting on graduated terraces built into the slope. This method effectively reduce soil erosion and water loss and maximizes arable land area. In most of the systems the contours are low, flat ridge of earth built across the slope, with a channel for runoff water just above the ridge. In areas where soils are able to take in water and rainfall amount is relatively low, level terraces may be used to reduce soil erosion too.

5 0
3 years ago
Keratinization:_____.
MaRussiya [10]
The answer is B hope this helps
5 0
2 years ago
Does one smile increase or decrease the chances of another
Lerok [7]

Answer:

increase the chances of another

3 0
3 years ago
According to the passage on the left, why were many homesteaders forced to abandon their claims?
snow_lady [41]

Answer:

Climate and slavery

Explanation: Slaves were the main reason that there was food before the end when Abraham was president. Climate and slavery can change how the crops were grown. I'd also say the geography was messed up then due to the climate. (sorry if wrong Q-Q)

8 0
3 years ago
Read 2 more answers
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