Which of the following are true of scientific hypotheses?
(Check all that apply.)
They can represent someone's opinion about why change occurs.
O They can be tested through observations of natural events.
O They must be rejected if no evidence is found to support them.
They must be agreed upon by all scientists before they are tested.
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Answer 1

Answer:

I think it's these two

O They can be tested through observations of natural events.

O They must be rejected if no evidence is found to support them


Related Questions

How is drought a limiting factor?

Answers

Answer:

Answer

Explanation:

It cause for disasters like lost of crop which causes no food and starvation. It also causes farms to lose money and thus is limiting farming,the citizens,and even the economy .

Question 20 of 34
Which situation shows a nonrenewable resource in use?
A. Solar energy reaches Earth's surface.
B. Sunflowers grow from sunflower seeds.
O c. Computer chips are made from silicon.
D. Lobsters are caught off the coast of Maine.

Answers

Answer:

c. Computer chips are made from silicon.

Explanation:

Non-renewable resources are natural substances that cannot be easily replenished when used. Examples are natural gas, coal, oil, nuclear energy, etc. Silicon is made when Silica is heated with carbon after which the product is reacted with hydrocarbons to polymerize them. Since the hydrocarbons are made from oil and natural gas, the resulting product is non-renewable.

Chips made from silicon are not biodegradable because to reuse them, they must be sent to companies that have specialty in renewing them.

List the effects of collecting and burning fossil fuels.

Answers

When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
Hopefully this help you! have a great day!
❤️

Answer:

mix with rain water in clouds and form acids

release unburnt carbon particles

This cause asthma

habitat destruction increased

volcanic activity air pollution add to greenhouse effect water pollution

major driver of climate change

creates climate change and releases pollutants that lead to early death, heart attacks, respiratory disorders, stroke

Explanation:

Define surface tension??​

Answers

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.

____________________

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[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

What's surface tension?

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Okay, so surface tension is the energy which is required to increase the surface area of a liquid due to intermolecular forces. The formula for surface tension is :-

[tex] \boxed{ \boxed{ \sf\gamma = \frac{1}{2} . \frac{f}{l} }} \\ [/tex]

Here,

gamma = surface tension

f = force

l = length

What are the major changes that occur after puberty?​

Answers

Answer:

The following are additional changes that may happen for the male as he experiences the changes of puberty: His body size will increase, with the feet, arms, legs, and hands sometimes growing faster than the rest of the body. This may cause the adolescent boy to experience a time of feeling clumsy.

Explanation:

Their hips become more rounded and they get a more defined waist. The vulva, vagina and nipples get bigger and the breasts begin to develop, sometimes unevenly. Other changes include pubic hair appearing and a vaginal discharge – an increase in the mucous produced in the vagina.

What causes more rain to fall on one side of a mountain than the other side?

Answers

Answer:

as the air moves up the windward side of a mountain

Explanation:

it cools and volume decreases.As results

humidity increases an orographic clouds and precipitation can develop

PLS HELP ASAP!!!! 60 points!

in complete sentences compare in depth each of the following:

Compare their functions
Compare their structures
Compare how they look when they are stained
Compare their counts

Answers

Compare everything you have then dived by 0.7826 you’ll get the answer

a coyote captures kills and eats a rabbit. what type of symbiotic relationship is this

Answer option

Predator-prey relationship

Mutually beneficial relationship

Competitive relationship

Parasitic relationship

Answers

i believe it is predator prey, the coyote is the predator, and the rabbit is the prey. they both are not competing for food(eliminating competition) , neither are both of them benefited. (eliminating mutualism) and a host is not used in this problem so that also eliminates the parasitic relationship. hope this helps! <33

PLEASE HELP AND EXPLAIN (NO LINKS OR NO RANDOM ANSWERS FOR POINTS)

Answers

The dust may have caused plants to die which led to herbivores dying of starvation then the carnivores slowly started to run out of other dinosaurs to eat and they became extinct. (I hope this made sense and helped some!)

during which time frames was there the greatest rate of change in atmospheric C02 concentration

Answers

Answer:

7000 PPM

Explanation:

7000 PPM i'm pretty sure

where are taenia pisiformis acquired from?

Answers

Answer:

From fecal contamination in the grass, beddingm, and food sources.

Which of the following was a control variable in this experiment?
A Type of soil
B Amount of water
C Height of plants

Answers

Answer:

b

Explanation:

mark me as brainleist answer

Why the Carbon must be cycled through the carbon cycle?

Answers

Answer:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.

what bug is this I need to to know.​

Answers

Answer:

i think beetle bug

Explanation:

the color size dont harm bad

DNA sequence that codes for glycine​

Answers

qwertyuiopal!!!! :))))

When comparing the brightness of stars, it is
necessary to know the distance to each star.
vole
True
False

Answers

I believe it is true

What the answer for this pls

Answers

Answer:

A. Help from bystanders can mean the difference between life and death.

Explanation:

The article is talking about saving someone's life by using CPR or the Heimlich maneuver, and how to do it.

Scientists analyzed data collected over a period of years in a game reserve in South Africa to test the hypothesis that competition with lions limits the abundance of leopards in the same community. The game reserve encompasses a variety of habitats, from open grassland to wooded areas around rivers and streams. It contains most of the indigenous mammal species and an adequate availability of their prey. For the most part, the leopards and lions show similar habitat preferences in the reserve.

The mass of the average lion is about three times that of the average leopard. The scientists analyzed several factors that might influence the abundance of each population, including the sizes of the animals preyed on by each species

Size of Prey Animal Percent of Leopards’ Prey (±2SEx¯) Percent of Lions’ Prey (±2SEx¯)
Small 34 ± 2 3 ± 1
Medium 63 ± 3 23 ± 2
Large 3 ± 1 36 ± 4
Very large 0 38 ± 3

Because competition with lions might affect the population size of the leopards, the scientists also analyzed data on the lion and leopard population sizes in the game reserve (Figure 1).

Required:
Describe what scientists mean when they refer to an ecological community such as that shared by the leopards and lions.

Answers

Answer:

The correct answer would be - these are the ecological community that shows the interspecific competition.

Explanation:

In this ecological community, both predators lion and leopards are living together and by the given data and information it is evident that they both share the same habitat and they both depend on the same prey for their food.

This cause competition between both lion and leopard for food and habitat. Such competition or interaction is referred to as the interspecific competitions negatively impacted by the presence of the other because they will have less food.

Answer

An ecological community refers to all of the interacting populations in a defined habitat.

Explanation:

see above

A scientist isolates a disease-causing particle. Which of the following properties would indicate that the particle is a virus and not a bacterium?

Answers

Answer:

a physical property

Explanation:

because there is nothing chemically related to it

Answer:

A physical property

Explanation:

Because the particle affect the virus by a bacterium

can someone please answer this question?

Answers

Answer:

C

Explanation:

What does the slope of a distance-time graph represent?
The

Answers

Answer:

it represents the speed of moving

Explanation:

A sloping line on a distance-time graph shows that the object is moving. In a distance-time graph, the slope or gradient of the line is equal to the speed of the object

depends, if distance is x and time is y, the slope will be representing the how long it takes to get to a distance. and ofc, the other way around, u get the point

What do you think of when you hear the word heat?

Answers

Answer:

A Fireplace, the desert heat or the song "heat"

Explanation:

Answer:

ice cream and ac, heat comes to my mind as heat wave and those are horrible... they are monsters

Explanation:

what signals the end of the cell cycle

Answers

G2 checkpoint

If the checkpoint mechanisms detect problems with the DNA, the cell cycle is halted and the cell attempts to either complete DNA replication or repair the damaged DNA. If the DNA has been correctly replicated, cyclin dependent kinases (CDKs) signal the beginning of mitotic cell division.

Biodiversity is highest near the __________.


A. the poles


B. oceans


C. temperate zone


D. equator

Answers

Answer:

equator

Explanation:

How would adding finer particles to the sand affect porosity?

Answers

Explanation:

Porosity depends on the size, shape, and mixture of grains and particles that compose soil and rock. For instance, small particles such as clays can compact more closely together, reducing the amount of porosity. However, larger particles such as sand and gravel will have more spaces available between them.

Michael discovers that a fish breathes less often in cool water. He correctly hypothesizes that A. the fish slows down in cool water, and does not need as much oxygen. B. the fish is eating, and does not have time to breathe as much. C. the fish is sleeping, and does not need as much oxygen. D. there is less oxygen in cool water, so the fish breathes slowly.

Answers

Answer: then it’s d there is less oxygen in cool water

Explanation:

There are many explanations for Michael's observation that fish breathe less frequently in cold water. However, his hypothesis that the fish returns to the cold water and requires less oxygen seems possible.

What type of animals fish are?

Fish are cold-blooded animals, which means their environment controls their body temperature. Their metabolic rate, activity level, and oxygen requirements decrease as water temperatures drop.

As a result, fish can slow down in cold water, reducing their oxygen demand and reducing their breathing rate.  Oxygen solubility may also play a role in whether fish breathe less in cold water. As the water temperature decreases, the ability of oxygen to dissolve in the water also decreases. Because of this, cold water can have less oxygen available, which can cause fish to breathe more slowly to compensate for the lack of oxygen.

Because fish need oxygen to digest food, they are likely to eat and breathe less. It's basically a joke that the fish are resting because fish don't have an obvious resting cycle and will move and swim when they are resting.

Finally, Michael's hypothesis that fish breathe less in cold water is plausible as it suggests that fish slow down and don't need as much oxygen.

Learn more about fish at:

https://brainly.com/question/29115848

#SPJ3

Can we depend on nonrenewable energy resources for our energy needs?

Answers

Answer:by

Explanation:

Answer:

Explanation: The answer is yes we can. We are depending on them now and they supply most of our needs to live.

Hope this helps and feel free to copy and paste it :)

help i’m lost i have no clue what this is

Answers

The rest position is NRSF

antipyretics such as ibuprofen and acetaminophen work in which of the following manners?

Answers

Answer:

Decrease production of prostaglandins

Explanation:

The extensive size of the fires that burned Yellowstone National Park in 1988 caught both land managers and ecologists by surprise. Many forests suffered intense infernos that removed virtually all vegetation. Some speculated that the park would never recover. Based on what you learned and disturbance and succession, is it likely that the park was irrevocably altered

Answers

Answer:

It is not possible that the park has been irrevocably altered.

Explanation:

The fires are part of the ecology of Yellowstone National Park, and there is a very low risk that this park will be irreversibly modified after a fire. It is scientifically proven that Yellowstone has recovered from fires in a period of thirty years and that the risk of this recovery not happening is very low. In addition, the natural fires that occur in Yellowstone are, in a way, important for the maintenance of the park's ecosystem, since they are able to break the seed dormancy  that are in the soil, in addition to promoting the opening of the serine pine cones.

Seed dormancy is the difficulty of germinating that some seeds present, even in an environment with favorable conditions for germination.

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