Which of the following statements best defines the Law of Conservation of Mass?
Mass cannot be created but it can be destroyed under extreme presures
Mass cannot be conserved during a chemcial reaction: a little bit of mass is always lost
The mass cannot be created nor destroyed
Mass can be created and destroyed

Answer: mass cannot be created or destroyed.

Explanation:

Energy cannot be created or destroyed and mass is an energy!

Where is greatest amount of fresh water in the world found? A. wetlands B. rivers C. glaciers D. lakes

Occurs when the particles in one part of an object _____________ more and ____________ with ______________ particles, making them ______________ ______________.
Different _______________ conduct ___________ at different ___________. ____________ are generally good conductors of heat compared to ______________ (paper, wood, plastics).
____________ are better conductors then liquids because _________________ in solids are ______________ _______________.

pls i need answers to the 1st, 2nd, and 3rd question

pls help me no links

What needed to be present in marine mud to form fossil fuels?

3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams

Energy is inversely proportional to the wavelength of a wave. Which of these waves would have the greatest energy?

How does hot object produce heat?

The hot objects create hot air producing heat.
Movement of the hot object creates heat.
Molecules in the hot objects create friction to produce heat energy.
Heat is absorbed the object from the air around it.

Do you think rayon when burnt will stick to the body like other synthetic fibers?

Select the correct answer.
Why are business organizations looking for professionals with journalistic skills?

A. to create quality content to connect better with customers

B. to diversify into the field of news reporting

C. to save on the overall cost of hiring

D. to hire ethical and honest professionals

How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)

a. The atom’s volume increases.

b. The atom’s mass increases.

c. The atom becomes positively charged.

d. The atom becomes negatively charged.

What does amu mean/ stand for

Read the article "Chicago's International Airports" and answer the question.

Chicago is a transportation hub. There are several airports in or near the city. O'Hare International and Midway International are two of the busiest airports in the area. They share many similarities and have some key differences.The city's busiest airport is O'Hare International Airport. It is located northwest of downtown Chicago. To travel between the airport's four terminals, passengers use the automated Airport Transit System. These trains travel over 2.7 miles of track and can carry 2,400 passengers in an hour. Other options for moving between terminals include the pedestrian tunnels and the Terminal Transfer Bus. O'Hare has about 1,028 direct domestic flights and 126 direct international flights each day. In contrast to O'Hare, Midway International Airport is a relatively small airport located southwest of downtown Chicago. The airport only has three concourses, making travel between gates easy and efficient. The facility has approximately 238 direct domestic flights and 12 direct international flights each day.

Both airports feature a variety of artwork, restaurants, and activities for people to experience. The Chicago Public Art Program provides the paintings, murals, sculptures, and exhibits in the corridors of both airports. O'Hare International Airport displays a replica of the fighter plane flown by Lieutenant Commander Edward H. O'Hare, the airport's namesake. Likewise, Midway contains an exhibit of the SBD Dauntless, a dive bomber plane recovered from Lake Michigan. Both airports also have restaurants that feature Chicago delicacies created by local chefs, but only O'Hare has the world's first airport aeroponic garden where foods for the airport restaurants are grown. Passengers waiting at both airports can relax and stretch in the Yoga Room. They can also visit the world's first aeroponic garden in an airport where foods for the airport restaurants are grown. While both airports are kid-friendly, O'Hare provides a special interactive children's area. The "Kids on the Fly Exhibit" allows children to play in a model airplane, helicopter, and control center. With the additions of the aeroponic garden and the children's play area, O'Hare offers a unique airport experience

What is the overall structure of this text?

Cause and effect
Chronological order
Compare and contrast
Problem and solution

In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.

Webb has calculated the percent composition of a compound. How can he check his result?
A) by making sure they are in the lowest ratio
B) by adding them to see if they total 100
C) by checking that they are whole-number multiples
D) by dividing them by the molar mass

The local newspaper has published the passage below.

Last week, scientists released incredible images of aurora australis, known as the northern lights, as seen from the Hubble telescope. The Hubble telescope was placed in orbit in 1990 by the space shuttle and has since delivered the sharpest images we have of our planet, our galaxy, and the universe. The images delivered last week show the beautiful display of lights in the southern hemisphere. These lights are the result of the solar activity known as solar wind. Traces of solar wind reach well beyond Earth and have been detected as far as Saturn.

Which statement in the news passage above is inaccurate?

The aurora australis cannot be seen from space.
The Hubble telescope does not orbit our planet.
The aurora australis is known as the northern lights.
Solar winds do not reach well beyond our planet.

Which of the following statements about fats is FALSE?
They are insoluble, making them good for long-term energy storage within the body.
They are used to make cell membranes.
They dissolve easily in the body’s fluids.
They can affect blood pressure, inflammation and the immune system.

1 The car on the motorway can travel 1860 metres in 60 seconds.

a Write down the formula for speed.

b Work out how fast the car is going. Don’t forget the units!

2 The dog runs 1980 metres in 5 minutes. How fast is he running? (Remember, there are 60 seconds in each minute.)

3 Sometimes we know the speed of something, and we want to find out how far it will go in a certain time. The formula we need for this is:

Distance = speed  time

How does the diaphragm aide in breathing?
A. When the diaphragm contracts, the lungs expand and allow
oxygen to enter
B. When the diaphragm relaxes, the lungs expand and allow
oxygen to enter
C. The diaphragm does not work with the respiratory system

Does anybody knows where Cocomelon was produced? Please tell the address if you know it.. If you tell the address. There is a 100% chance you will get brainliest.

please help bohr diagram practice

In the laboratory, Ryan was viewing the following sequence: AGGAGGA----TCCGCCT. Where did he highlight the presence of a mutation in this sequence?

Develop models bonds can be placed on a scale that ranges from 100% ionic to 100% covalent. Use what you know about the types of bonds that specific elements tend to form to place each of the following compounds in the correct location on the scale: CO2, N2 , NaF, H2O

why can electromagnetic radiation travel through empty space?

How many atoms of each element are in 2C(NO_2)_2?

List 2 evidences for climate change.

This is 6th grade science. Amplify.

Click Play and wait for the vibrations to stop. Suppose you were at the recording station when the earthquake hit. Based on the pattern of waves on the seismogram, what did you experience during the earthquake? (Search: Earthquakes 1 – Recording Station on gizmo)

Which is a difference between the Paleozoic and Mesozoic era?

Animals lived in the water during the Mesozoic and on land in the Paleozoic.
The first birds emerged in the Paleozoic era while mammals first emerged in the Mesozoic.
Many different species of dinosaurs lived in the Mesozoic, but they all died off in the Paleozoic.
Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era.

Apples have many different genetic traits, including skin color, size, sweetness, and crunchiness. Each variety (type) of apple has a unique combination of phenotypes for these traits. The first trait most people notice about an apple is the color of its skin. A single gene that comes in two forms (alleles) controls this trait. The allele for red color (C) is dominant, and the allele for yellow color (c) is recessive.
The seeds in apples form by sexual reproduction that involves cross-pollination. All the apples on a tree that grows from a seed will be the same color — either red or yellow. That's because the color of their skin depends on the pair of alleles the tree inherited from its parents. An apple orchard usually has trees of many varieties. Because of cross-pollination, each apple flower can be pollinated by pollen from several different trees. Thus, each seed in an apple from an orchard probably has a unique combination of genes. This can be a problem for an apple tree farmer. If the farmer grows new apple trees from seed, the apples on the new trees will be unlikely to look or taste like either parent tree's apples. That's because they will not have the same mix of traits.
So, how does a farmer make sure that all the apples on a tree look and taste a certain way? When farmers find an apple they like, they use methods of asexual reproduction to make new trees. Grafting is one way to asexually reproduce apple trees that are identical to the parent tree. A farmer cuts off a branch of the apple tree that produces the best apples. Then the branch is grafted onto, or joined with, the trunk of another tree. The apples that grow on the new tree will be genetically identical to those of the parent tree that the branch came from.
In this activity, you will develop two models for growing new trees that make either red or yellow apples. The two models should compare sexual reproduction and asexual reproduction (grafting). Include the genotypes of the parents and the offspring in your models.
To model sexual reproduction, use Punnett squares to show the results of crosses between trees with different colors of apples. Start by showing a cross between one red parent that has the genotype CC and one yellow parent that has the genotype cc. Then choose two trees from the first generation of offspring to make a second generation. Cross each of them with another tree that has the genotype Cc.
To model asexual reproduction, use a branching diagram (concept map or tree diagram) to show the results of grafting. Start with a parent that has the genotype Cc. Show four offspring for the first generation of grafting. Then choose two of these offspring as parents for a second generation of grafted trees.
Finally, write two short paragraphs: one under the Punnett squares and another under the branching diagram. Each paragraph should summarize what the diagram shows about genetic variation.

What is an ellipse please help)