which option do you think could cause near sightedness?
a) the eye lens doesn't refract light
b)the eye lens is concave
c)the eyeball is too long
D)the retina cells aren't reactive to light
Answer:A
Explanation:because it doesn’t refract light so you can’t see close
Answer:
A) the eye lens doesn't refract light
Explanation: because the eye doesn’t refract, or bend, light properly to focus on the retina. Makes eyesight appear blurry and distorted.
Can someone answer this
A rubber ball rolls across a flat floor. After 1 second, it has rolled 2 meters, and after 2 seconds, it has rolled an additional 1.6 meters. From this data, it is clear that the rolling ball has decreased in
Answer:
It has decreased in speed.
Explanation:
The second time it rolled, it had more time and did not go as far. Meaning it gained friction and decreased in speed.
Which of the following correctly relates the porosity, permeability and production of a well in an aquifer?
Decreasing porosity and increasing permeability lead to increased production in an aquifer.
Decreasing porosity and decreasing permeability lead to increased production in an aquifer.
Increasing porosity and increasing permeability lead to increased production in an aquifer.
Increasing porosity and decreasing permeability lead to increased production in an aquifer.
100 points
Answer:
Increasing porosity and increasing permeability lead to increased production in an aquifer.
Explanation:
An aquifer is a body of rock / sediment that holds groundwater.
Porosity affects the amount of water a particular rock type can hold and depends on a couple of different factors such as how water circulates within the soil or ground.
The ability of the ground water to pass through the pore spaces in the rock is described as the rock's permeability.
Therefore, Increasing porosity and permeability will lead to increased production in an aquifer.
give an example of one living and one non-living thing that uses the force of buoyancy to function. explain how they work.
Answer:
the biotic one is a human in water and they flaot because of the air in our lungs and the abiotic one is a swimming buoys are filled with foam and foam floats
Explanation:
...
What are the implications of Pascal's Law?
determination of pressure which can be exerted on the fluid
The image shows the cone forecast map of a hurricane.
Four locations (I, II, III, IV) are labeled on the diagram. At which of the four locations is the hurricane predicted to be LEAST intense?
A.) I
B.) II
C.)IV
D.) III
True or False
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting.
Answer:
true
Explanation:
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting. If two forces act in the same direction on an object, the forces add together and the object experiences a greater force in that direction
light traveling through air encounters a second medium which slows the light to 100,000 miles/second. What is the index of the second medium?
Answer:
300000 hope it is help full
Explanation:
300000
Why are Sea Otters considered a keystone species?
Answer:
Sea otters are considered a "keystone species" because they can exert top-down pressure via predation on sea urchins, which are grazers upon kelp.Explanation:
As urchin density decreases from sea otter predation, so does the grazing pressure on kelp and as a result kelp forests flourish in the presence of sea otters.
The image shows a ship using sonar to locate a school of fish. Which data are used to determine the distance of the ship from the fish?
A. The amount of time it takes the sound waves to travel to the fish and back to the boat
B. The number of sound waves the ship emits
C. The amount of time it takes the sound waves to travel from the boat to the fish
D. The number of sound waves that bounce off the fish
Answer:
A
Explanation:
The distance of the object that reflected the sound wave can be calculated by knowing the speed of sound in water and the time interval between transmission and reception of ultrasound.20 Mar 2017
the walls of a room are to be painted. a tin of paint has a total mass of 7000 g in a volume of 5000cm3. the empty tin has a mass of 500g. determine the density.
!please help!
Answer:
The mass of paint will be "6500 g".
are exorcisms real and if so does that mean demons are real ???
A student wants to design an investigation to determine if an object has potential energy. What are some questions the student could ask to determine if the object contains potential energy? (Select 2)
Does the object have kinetic energy?
Does the object move when it is released from a rest position?
Does work have to be done to hold the object in place?
Does a force act on an object?
Is the object part of a system?
(i had another attempt, and 2 and 5 were innocent)
Response... Option 1 & 4
What is the code to this?
Middle school science: Do folded mountains form when 2 continental plates push against each other? (you can just answer yes or no)
Answer:
Yes
Explanation:
When tectonic plates push against each other, folded mountains can form
The diagram shows the results of copying waves in both analog and digital forms. What conclusion about the reliability of analog and digital waves is supported by the data?
A. Digital waves are less reliable because they tend to have more errors when copied.
B. Analog waves are less reliable because they tend to have more errors when copied.
C. Analog waves are more reliable because they tend to have fewer errors when copied.
D. Digital waves are more reliable because they tend to have more errors when copied.
Answer:
analog waves are less reliable (B)
Imagine that a plant switches its habitat. Draw the new plant and label the new adaptive features that the plant should have in the new habitat to survive. Upload the image of the new plant drawn . Give your plant a suitable name
...growing lower and closer to the ground to shield themselves from wind and cold.
explain why the rocket can move at constant speed in outer space.
Answer:
When the rocket's engines are fired up, the force of gravity is disturbed, and the rocket takes off in the air. Later, as the rocket's fuel runs out, it slows down, comes to a halt, and eventually plummets to Earth's surface. Forces can affect objects in space as well. Spaceships are constantly in motion while traversing the solar system.
Explanation:
Please read!
Answer:
Explanation:
The rocket works because of the law of conservation of linear momentum. The law of conservation of linear momentum is very important in physics. Momentum is defined as the mass of an object times its velocity.
Explain how water is controlled to generate electrical energy in hydro-electric dams. and show a diagram is help explain the answer.
This student is listening to MP3 files. What two needs or wants does this wave technology meet?
A. To share music and podcasts easily
B. To hide or erase messages quickly
C. To send and receive messages quickly
D. To store music and podcasts easily
Answer:
A.To share music and podcast easilyExplanation:
HAVE A GREAT DAT
Which statement tells a result of the big bang?
Galaxies are moving farther away.
Galaxies are moving randomly.
Galaxies are moving closer.
Galaxies are stationary.
Answer:
Explanation:
Galaxies are moving closer
Can I pass 6th grade with these grades:
ELA: 50.8%
History: 25.6%
Math: 60%
Science: 91.3%
Answer:
You can't
Explanation:
I'm sorry but with a 25% and a 50% it's not enough. Hope this helps you out and your teachers are nice enough to work with you.
Which of the following are functions of the skin? help pls
I. It protects the body
II. It help the body keep its balance
III. It helps the body cool down by releasing heat
IV. It collects information from the surroundings
A. I and II
B. II and III
C. I, II, and III
D. I, III, and IV
c i beleive is the correct answer
Explanation:
PLEASE HELP IMMEDIATELY
1. Based on the context, what does "Jovian" refer to?
2. Before Roemer calculated the speed of light, how fast was the speed of light thought to be?
3. What was the problem with Galileo's experiment to measure the speed of light?
4. Roemer's calculations were not completely correct. Did he calculate too high or too low for the speed of light?