Everying thing is mixture as everything have different compounds
What break down into simpler materials
Answer:
Digestion is the breaking down of food into simpler substances.Ingestion is the process of taking the food in.Absorption is the process of absorbing the nutrients and water into the bloodstream.Assimilation is the process of utilization of absorbed nutrients by the cells.
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Which is a physical change?
using electricity to break down water into hydrogen and oxygen
formation of rust on a metal fence
turning on a gas burner on a stove
the evaporation of water into water vapor
Answer:
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I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
Which of the following explain why it is important to conserve both types of natural resources?
A. Cutting down too many trees in an area removes them faster than they can regrow.
B. Wind turbines can harness conserved energy in order to make more electricity.
C. Natural resources are typically all nonrenewable because they are irreplaceable.
D. Resources are only renewable if they can be replenished before humans use them.
which is a mixture?
A. Water reacting with oxygen
B. Salt dissolved in water
C. Sodium and chlorine in a molecule
D. A solid aluminum pan
Answer:
B. salt dissolved in water
Explanation:
a mixture is multiple substances mixed together
Which items are biomass energy sources? Select all correct answers.
the sun
wood chips
manure
paper
Answer:
wood chips, paper, and manure are biomass energy sources.
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms.
Wood chips, paper, and manure are biomass energy sources. The primary form of energy from renewable sources that can be utilised to replace fossil fuels on a long-term basis is biomass.
Energy created or generated by living or formerly living creatures is known as biomass energy. Plants like the aforementioned maize and soy are the most prevalent types of biomass that are utilised for energy. These creatures' energy may be used to generate electricity or be burnt to provide heat. Direct combustion is the primary method of producing most of the power from biomass. In a boiler, biomass is burnt to create high-pressure steam. These turbine blades revolve as a result of the steam flowing over them. Wood chips, paper, and manure are biomass energy sources.
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The following image shows an owl swooping to grab a mouse.
What results when two waves that are completely out of phase meet?
A: constructive interference that results in a greater amplitude
B: destructive interference that results in a greater frequency
C :destructive interference that results in a lower amplitude
Answer:
The result is a superposition which is twice the amplitude of each input wave. Φ = π means the two waves are completely OUT OF PHASE, and so add completely destructively. The result is a superposition which has no amplitude at all.
Explanation:
The result is a superposition which is twice the amplitude of each input wave. Φ = π means the two waves are completely OUT OF PHASE, and so add completely destructively. The result is a superposition which has no amplitude at all.
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Explain the process of Soil formation, including the different components of healthy soil.
Answer:
The whole soil, from the surface to its lowest depths, develops naturally as a result of these five factors. The five factors are: 1) parent material, 2) relief or topography, 3) organisms (including humans), 4) climate, and 5) time.
Explanation:
Answer:
The process of soil formation depends on the presence of the new soil material obtained by scraping or settling. These two actions are responsible for using new starting materials to initiate the process of soil formation.
The different components/factors of healthy soil are:
1. Time
2. Parental material
3. Topography and relief
4. Climate
5. Organisms (living things such as animals, humans, plants, and animals)
List one property that water and oil do not share. Why do you think water and oil have different properties?
Infer why the brown marmarated stink bug (BMSB) is an invasive species in the United States.
Answer:
A. China And Japan.
Explanation:
The species is native to China/Japan and was introduced into the United States in the mid-1990s, possibly stowing away in a shipping container. The presence of this stink bug is concerning for farmers because it feeds on a large number of high-value crops and ornamental plants in its immature and adult life stages.
Answer:
The species is native to Asia and was introduced into the United States in the mid-1990s, possibly stowing away in a shipping container. The presence of this stink bug is concerning for farmers because it feeds on a large number of high-value crops and ornamental plants in its immature and adult life stages.
Explanation:
Spraying crops with an herbicide is an example of using what type of control?
Answer:
Choice A, Chemical
Explanation:
I found this online: "Biological control uses a living organism to kill pests while chemical control uses different strong chemicals to kill, prevent or repel pests." Herbicide is an example of using chemical to kills, prevent, or repel pests.
Why would a farmer put lime on his crop fields?
Answer: The first one