A student uses a lever and fulcrum to lift a rock off the ground.
Which option describes when potential energy is converted into kinetic energy during this process?
a. when the lever is wedged beneath the rock but before it has been lifted
b. when the student presses down on one side of the lever to cause it to move
c. when the rock rests on the ground without the lever
d. when the rock rests above the ground
what are 5 things that go through photosynthesis? I have: plants, algae, some microorganisms and cyanobacteria
Explanation:
This process is called photosynthesis and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis.
ASAP LIKE RIGHT NOW PLEASE
Explain what happens to the amplitude of a wave when the energy to produce it is increased. in easy words
In the process of precipitation, liquid water changes into water vapor and enters the atmosphere.
True or False?
:p
Answer:
true
Explanation:
How would you label the molecules shown in the sample above? ( A is wrong )
a. Sample A is cooler. Sample B is hotter.
b. Sample A is hotter. Sample B is cooler.
c. Samples A and B are the same temperature.
PLEASE HELP!!!! IT'S DUE TODAY!!!
Answer:
I think it might be C
Explanation:
Im not sure though
Please tell me if im wrong
Consider the two models seen here. These models represent two different minerals. Each is composed of a lattice of carbon atoms. How do these crystals differ?
A) The two have different chemical formulas. Eliminate
B) The diamond model represents a crystal while the graphite represents a molecule.
C) Both are crystals, but the organized arrangement of the carbon atoms in each differs.
D) The graphite crystal is not pure: that is, it contains two elements while the diamond crystal is composed of carbon atoms only.
Answer:
hi mama rusty thank you for your correct email address for the title company hunk you a picture of the following statements about you and I will be there at work and
Explanation:
l hope I can help you
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple
Answer:
Threatened Species: A threatened species is a species at risk but not yet endangered. California sea otters were classififed as a threatened species. Laws were passed to protect the otters and now they have increased their population size.
Invasive Species: One of the main causes of extinction and endangered species is the introduction of an exotic species. New exotic species are called invasive species. Invasive species can disrupt food chains, carry disease, prey on native species directly, and out-compete native species for limited resources, like food.
Extinction: If a population decreases too much in numbers, they disappear. Extinct species mean that the species has died out and no individuals left. An example of extinction: New Zealand was once home to a bird called the Giant Moa. Humans settled as their population increased the Moa population decreased. The species is now extinct.
Explanation:
Which of the following has the greatest influence on the size and force of waves?
A.
seasons
B.
Moon’s gravity
C.
wind speed
D.
Earth’s gravity
what is the function of tunnels and passageways in subsurface mining?
a. to reach mineral ore deep below the surface of the earth
b. to reach mineral ores on the surface of the earth
c. to drain underground lakes where minerals are found
d. to create strip mines and quarries below the surface of the earth
The function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.
What is subsurface mining?Subsurface mining is the process in which mineral ores are too deep to extract at with this mining techniques, subsurface mining methods are used .
An advantage and good thing of subsurface mining is that it will not disturb land than surface mining it only disturbs less than one-tenth the surface amount of land as surface mining and the method.
Therefore, the function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.
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HELP IMPORTANT TEST!! Why must animals eat food but plants do not eat food? A: Plants do not appear to eat, but they do actually eat nutrients in the soil. Animals must eat to obtain food that they can't get from the soil. B:Plants make their own food through photosynthesis. Animals must eat because they cannot make their own food. C: Plants use photosynthesis to make their own food instead of eating. Animals eat plants because they like the taste of certain fruits. B: Plants make their own food through photosynthesis, so they do not eat. Animals eat because the energy they make themselves is enough to live but not grow. By eating, they can grow big and strong.
Answer:B
Explanation:The answer is B because plants use photosynthesis to make their own food while animals such as humans do not make their own food using the sun photosynthesis is using the suns Energy to produce your own food If you think about it humans are animals and do you use the suns energy to produce your own food no
Which distinguishes a dwarf planet from a planet?
Answer:
It's size
Explanation:
The definition of a dwarf planet is "a celestial body that orbits the sun and has a spherical shape but is not large enough to disturb other objects from its orbit"
Essentially, "dwarf" is an adjective. Just like saying the colour distinguishes a purple planet...
I REALLY NEED HELP QUICKLY!!
Answer:
i think the answer is c
Explanation:
QUESTION 2
2. How would you describe an ecosystem?
Answer: An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts
HOPE THIS HELPS
PLeAse hELP
Write a paragraph (5-8 complete sentences) using the prompt below:
An ecosystem has many living and nonliving things. Choose one producer, one consumer, and one decomposer. Explain how they work together.
Answer:
The producer is a plant. It produces vegetables and fruits for the consumer to eat. The consumer is an human. It eats the fruits and vegetables that came from the plant. Lastly the decomposer would be for example fungi. It breaks down dead plants and tree trunks. It helps the producer produce and the consumer comsume.
What is the chemical formula fructose
helppp this easyyyyyyyyyyyyyy
Answer:
Circulatory System -
Nervous System
Respiratory System
muscular system
I´ll mark branlist for the best answer!!!
Write a paragraph (5-8 complete sentences) answering the prompt＂How does the availability of resources in ecosystems impact ecosystems?＂
5-8 Sentences on: "How Does The Availability Of Resources In Ecosystems Impact Ecosystems?"
Changing out natural resources in our environment can affect the whole entire ecosystem. Ecosystems can change throughout time but the change may or may not affect the ecosystems. But according to research, if the change is too fast the whole ecosystem can be destroyed. An imbalanced or damaged ecosystem can lead to problems. Certain resources play an important role such as sunlight and water, we need resources to survive and can also help living creatures. These resources impact animals, plants, and insects/bugs.
P.S If you need more sentences I will edit my answer!
Hope this helps!
~Hocus Pocus
How does weathering and erosion contribute to the cycling of earth's materials? (specifically rock/the geophere)
Answer:
Erosion breaks rocks down further and then moves them.
I need help with these questions from 8th Grade science, Specifically Chemistry.
Answers should be detailed, 3-4 sentences.
List at least 3 different physical properties or changes of a substance.
List at least 3 different chemical properties or changes that a substance can experience.
EXPLAIN YOUR ANSWER! NO LINKS! PLEASE DON"T ANSWER JUST TO GET POINTS!
I will report your answer if you do any of those things.
Thx in advance!
Answer:
Physical properties of a substance can include color, temperature, and mass. These are physical properties because they can be measured without changing a substance's chemical identity. Chemical properties of a substance can include flammability, acidity, and reactivity. These are chemical properties because they can be measured only by changing a substance's chemical identity.
please help me with these science questions
Answer:
1. arches commonly form where inland cliffs, coastal cliffs, fins or stacks are from the sea, rivers or the weather. 2. yellowish brown loamy/foamy deposit found in North America, Europe, and Asia!
The main function of the respiratory system is to –
A. filter body fluids to remove waste products from the bloodstream.
B. send signals in the form of hormones to the body to control growth, reproduction, and metabolism.
C. rapidly communicate specific information using electrical impulses.
D. exchange gases, mostly carbon dioxide and oxygen, between the body and the atmosphere.
Please help me with these science questions
Answer: The wind erodes the earth by moving pieces of it every which way.
Explanation:
Every patch of air carries hundreds of thousands pieces of dirt sand and chunks of earth. When the wind changes course it will slowly pick up more and more and until an indent will form. This is also how sand dunes are made.
Answer:
If the wind constantly pushes a rock, eventually the sides will start eroding, and the wind will cause it to break and erode.
The blowing wind constantly changes the earths surface by moving rocks, and breaking them.
by the wind constantly pushing sand on top of each other in one place.
Explanation:
Which of these are vestigial structures?
A. the sharp spines of a cactus
B. the wings of a butterfly
C. the hip bones found in some spees of snake
D. the thick fur and layer of fat of some mammals in cold climates
Answer:
your answer is C
Explanation:
Can yall help w these. Please no links/spam
Answer:
sun
chloroplasts absorb
sugar light
plants phytoplanktin
Explanation:
Answer:
1. Sun
2. Chloroplasts, absorb
3. sugar, light
4. plants, animals
Explanation:
Hope that helps
The equator is at a latitude of 0°. Which latitude will have the warmest temperature?
Answer:
There is a relationship between latitude and temperature around the world, as temperatures are typically warmer approaching the Equator and cooler approaching the Poles. There are variations, though, as other factors such as elevation, ocean currents, and precipitation affect climate patterns.
Explanation:
1.In this environment, which trait is adaptive for the birds
2. Did the birds choose to have the adaptive trait? (yes or no)
3.Sherman suggests that reproduction always creates individuals with adaptive traits. Does this seem correct? Why or why not?
Answer:
1.Natural selection is the mode of evolution that makes living things well-suited (adapted) to their environments. This mechanism has sculpted the beaks, feet, and plumage of birds over millions of years, making these animals more successful in their environments.
2.yes
3.
Explanation:
Im sorry only 1, 2 I can answer!
But hope it helps you!
You can report me if you want!
If the last three animals of a species are all females, what will happen to the species?
A
The species population will slowly grow +
B
The species will become extinct because it takes a male and a female to reproduce -
C
The species will not change /
In an ecosystem, if the last three animals of a species are all females, the species will become extinct because it takes a male and a female to reproduce .
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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If high tide occurs at 6:00 am, when will the next high tide occur?
. Which statement describes the difference between an independent and dependent variable? a. The dependent variable changes based on the independent variable.
b. The dependent variable is the control, and the independent variable is the result.
c. The dependent variable does not change, and the independent variable does change.
d. The independent variable does not change, and the dependent variable does not change.
Answer:
A
Explanation:
The independent variable only changes when whoever is conducting the experiment changes it, When it does change, it changes the dependent variable
