What is the density of a liquid that has a volume of 4 gallons and weighs 90 lbs

Answers

Answer 1
Answer: The answer is 22.5 lb/gal.

The density of a liquid is quotient of mass and volume: D = m/V. The unit of the density is pound per gallon (lb/gal)

The density is unknown: D=?
But, we have:
mass: m= 90 lbs
volume: V = 4 gals

Do, the density of a liquid is:
D = 90 lbs / 4 gals
D = 22.5 lb/gal

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Based on this data, predict what will happen to the water in the Ogallala aquifer over the next decade.

Answers

Answer:

The Ogallala Aquifer has a shallow water table and is mostly surrounded by sand particles, silt and clay, and some gravels that are present below the Great Plains in the United States.

It contains about 3 billion acres feet of water but still, it could run dry. it has a total water storage that is equivalent to the Huron Lake that is located in the Midwest.

It is the only source of water within the regions of high plain areas that actually provides the water for residential, industrial, and agricultural use.

This groundwater is already contaminated and slowly getting declined, as a result of which the water in this aquifer will slowly become extinct or unsuitable for any purposes.

Answer:

The Ogallala Aquifer has a shallow water table and is mostly surrounded by sand particles, silt and clay, and some gravels that are present below the Great Plains in the United States.

Explanation:

Will Betelgeuse become a Neutron star or Black hole?

Answers

☁️ Answer ☁️

Scientists believe that Betelgeuse will most likely become a neutron star after it goes through a supernova event.

Hope it helps.

Have a nice day noona!~  ̄▽ ̄❤️

What are meristematic tissues?

Answers

Meristematic tissue is the dividing tissue present at the growing regions of the plants. They are meant for growth of an organ Cells of meristems divide continuously and help in increasing the length and girth of the plant
The cells of this tissue are similar in structure and have thin cellulose cell walls
The cells do not contain any intercellular space between them 
The cells contain few vacuoles or no vacuoles at all
They are further divided in the following parts
1)Apical meristem
2)Lateral meristem
3)Intercalary meristem
Meristematic tissues are the temporary tissues. They help in the growth of plants and after contributing to the growth of plants, they get transformed to permanant tissues.

Which is an interconnection of food chains in an ecosystem?A) food web
B) trophic chain
C) energy web
D) producer web

Answers

An interconnection of food chains in an ecosystem is the food web. It is the natural interconnection of food chains and a graphical portrayal of what-eats-what in a biological group. Another name for sustenance web is a buyer asset framework. The food web is also called as consumer-resource system.
The answer to this question is A) Food Web

What determines the inherited traits an organism has? A.the proteins produced by a cell

B.the number of chromosomes in a cell

C.the size of the chromosomes

D.the genes of its chromosomes

Answers

Answer: The correct answer is-

D.the genes of its chromosomes.

Inherited traits are the characteristics of an organism that are transferred from parents to their next generation through genetic material (DNA).

For Example- Eye color, hair color, skin tone.

Gene corresponds to the unit of heredity that can be described as the segment of DNA that codes for a particular protein. They are present on the chromosome (thredlike structures composed of DNA).

The protein that is formed by gene, depicts a specific trait of the organism.

Thus, inherited trait of an organism are determined by the genes, located on the chromosome.

The genes of its chromosomes  determines the inherited traits an organism has. Therefore, option (D) is correct.

Inherited traits are the characteristics of an organism that are passed down from one generation to the next through DNA. Some examples are the colour of your skin, your hair, and your eyes.

The unit of heredity known as a gene is defined as the section of DNA that codes for a specific protein. They can be found on the chromosomes, which are DNA-based thred-like structures.

The gene-produced protein represents a particular characteristic of the organism. Thus, the genes found on chromosomes control the inherited traits of an organism.

Learn more about inherited traits, here:

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A student poses the question: How does the presence of dissolved salt affect the freezing point of water? To answer this question, the student set up two conditions. In the first condition, the student added salt to water in a container and referred to this condition as the variable. In the second condition, the student did not add any salt to water in a second container and referred to this condition as the control. The student took both containers and attempted to freeze the water at various temperatures to assess the freezing point. Would this be a valid experiment? A. Yes, because there is more than one variable.
B. Yes, because there is one variable and a control
C. No, because there is not more than one variable
D. No because there is only one variable and a control

Answers

Answer:

The correct answer is option B. yes because there are one variable and a control.

Explanation:

The validity of experiments can be tested by the four components of experiments. These four components are control, dependent variable, independent variable, and constants. All of this basic component is the validity of the experiments.

In this experiment there is the control where experiment is performed within controlled and there is also one variable.

Thus, the correct answer is option B. yes, because there are one variable and a control.

Answer:

The correct answer will be option-B.

Explanation:

A scientific experiment must contain three variables: independent variable (which can be manipulated), dependent variable(which can be tested) and control (which is kept constant).

Experimental samples must be divided into two groups: an experimental group in which variable to be studied is tested and a control group in which the independent variable does not influence the experiment.

In the given question, since experimental design contains variables and the experimental as well as the control group which act as a reference group to the experiment.

Therefore, Option-B is the correct answer.