Insecticides can pollute the topsoil.
True or false ?

Answers

Answer 1

Answer:

True

Explanation:

Some insecticides when applied may persist for longer periods and that is very harmful because the soil is degraded and living organisms in the soil may be harmed leading to soil erosion. Then the soil will lose its fertility.


Related Questions

Blood vessels are connected to nerve fibers which are regulated by the
nervous system. When innervated they respond by doing what?

Answers

Answer:

When blood vessels are innervated they respond by contracting and relaxing their muscle wall, as a result of the activity of the autonomic nervous system.

Explanation:

The nerves that are responsible for the innervation of the blood vessels are called nervi vasorum, and are composed of nerve fibers of the sympathetic and parasympathetic nervous systems.

The innervation of the blood vessels specifically acts on the muscular wall of the vessel, so it contracts or relaxes depending on the activity of the nervous system:

Sympathetic nervous system stimulates vascular contraction.Parasympathetic nervous system makes the vascular smooth muscle relax.

The action of the autonomic nervous system has an effect on blood pressure, being a determinant of normal or pathological behavior of the arteries.

Why is weather different from place to place?​

Answers

Answer:

There are differences in climate around the world because of differing amounts of radiation received from the Sun at different parts of the Earth at different times of the year.

Explanation:

Hope this helps :)

Answer:

because according to where they are located, atmosphere brings different weather and temperature, and some places are further away from the sun, just like when it is day in one side but night on the other

Explanation:

How many chromosomes are present in human sex cells at the end of meiosis

Answers

Answer:

23  

Explanation:

What type of plate boundary lies between the Juan de Fuca plate and North American plates? (one word, all caps)

Answers

Answer:

Transform Plate

Explanation:

I hope that helps. I looked it up on the web

Answer:

TRANSFORM

Hope I helped you out.

Which is the source of energy, which drives the water cycle?

Answers

Answer:

it's the sun

Explanation:

the water cycle is driven primarily by the energy from the sun

Explain how bacteria can be both harmful and helpful.

Answers

The species of bacteria that colonize our respiratory and digestive systems help set up checks and balances in the immune system. White blood cells police the body, looking for infections, but they also limit the amount of bacteria that grow there. Likewise, bacteria keep white blood cells from using too much force. Bacteria also help out by doing things cells are ill-equipped to do. For instance, bacteria break down carbohydrates (sugars) and toxins, and they help us absorb the fatty acids which cells need to grow. Bacteria help protect the cells in your intestines from invading pathogens and also promote repair of damaged tissue. Most importantly, by having good bacteria in your body, bad bacteria don’t get a chance to grow and cause disease.

Some species of bacteria in your body can result in diseases, such as cancer, diabetes, cardiovascular disease, and obesity. Usually, these diseases happen only when the normal microbiome is disrupted, but that can occur even from antibiotics. Antibiotics kill bacteria, and some of those will be good bacteria that we need to protect our health. When that happens, the bad bacteria that normally are kept in check have room to grow, creating an environment ripe for disease.

Bad bacteria can exist at low levels in your body without causing harm or can grow too much and wreak havoc. Staphylococcus aureus can cause something as simple as a pimple or as serious as pneumonia or toxic shock syndrome. P. gingivalis can cause gum disease, and was recently linked to pancreatic cancer (read our article find out more). Similarly, when not suppressed by good bacteria, Klebsiella pneumonia can cause colitis, and subsequently lead to colorectal cancer.

In addition to allowing disease-causing bacteria to flourish, the elimination of good bacteria throws  the immune system out of whack. The result can be simple allergies or very debilitating autoimmune diseases. Without the right balance of bacteria, your body might suffer from constant inflammation.

Inflammation is the body’s alarm system, which calls white blood cells to heal a wound or to get rid of infection. Chronic inflammation, however, can make the body more susceptible to autoimmune diseases and cancer, such as causing inflammatory bowel disease which if uncontrolled can cause colon cancer.

Wyatt has heart problems

Answers

Answer:

who's that

Explanation:

Write down important details about the immune system

Answers

Answer:

lungs,heart, stomach, and livers

Explanation:

I thinks what an immune system is

Answer:

important details about the immune system : it protects organisms from diseases, it can be self-distructive, white cells make your immune system work , and sleepless night hurt your immune system

Explanation:

HURRY I ONLY GOT 20 MINS!! 100 pints

Analyze the given diagram of carbon cycle below.

An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.

Part 1: What is happening at location G?
Part 2: Which type of energy transformation is taking place at this location?
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.

Use complete sentences to explain your answer.

Answers

Answer:

This is too difficult to read and understand... if you had a diagram I could be able to help more, but I can't figure out exactly what your asking... all I know is part A is CO2 being released into the atmosphere...

Hope you have a great day and if you have a diagram let me know.. I'd love to help :D

Answer:

Part I

At location G, the process of combustion is taking place where hydrocarbon or organic carbon from the fossil fuel is burnt in the presence of oxygen to produce carbon dioxide and water as the products.

CxHy = CO₂ + H₂O

Part II

At point G there is no transformation of energy since during the process of combustion energy will still be stored in form of chemical energy in the bonds of carbon Iv oxide and the water produced during the reaction.

Part III

The process shows recycling of carbon in the carbon cycle. This is because carbon from living organisms is cycled to non living organisms. When plants and animals die and are buried deep in the ground, they are then slowly converted to fossil fuels which contain organic hydrocarbon compounds including petrol, kerosene and other compounds. Then the fossils are used in the industries and undergoes combustion releasing carbon iv oxide which is then released to the atmosphere and used by the plants and animals. The process starts once again.

DISCLAIMER:

THIS WORK AIN'T MINE

I got it from the same question that was answered.

what is a sedimentary rock

Answers

Answer:

Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface. Sedimentary rocks often have distinctive layering or bedding. Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. Sedimentary rocks are made when sand, mud and pebbles get laid down in layers. Over time, these layers are squashed under more and more layers. Eventually, the layers are lithified – turned to rock. Sedimentary rocks can be formed in deserts, lakes, rivers and seas .

Water makes up a large percentage of the body's cells. For a cell to remain in homeostasis, there must be a
mechanism to control water changes in the cells. The movement of water from an area of high water concentration
an area of low water concentration is
a. diffusion
b. osomosis
c. active transport
d. stable transport
so which one really is it....

Answers

Answer:

B. Osmosis

Explanation:

Osmosis
Hope this helps

In the light independent reaction _____, ______, and ______ combine to make ______ and ______

Answers

Answer/Explanation:

In the light independent reaction carbon dioxide, ATP, and NADPH combine to make glucose and oxygen.

kareem drew a diagram to compare flatworms and segmented worms

which label belongs in the area marked X?

a. can reproduce sexually
b. are always parasites
c. are all sessile
d. are covered in setae

PLEASE HELP

Answers

Answer:

Explanation:

A - can reproduce sexually

Well, the answer for this question is A.

12.
What is the difference between a hypothesis, theory, and a scientific law?

Answers

Answer:

a hypothesis is an educated guess or an assumption made before any of the research has been done.

a theory is a substained explanation for an occurrence.

a scientific law describes what has happened.

Explanation:

PLEASE HELP IM BEGGING BRAINLY IF CORRECT
Which type of stress is most likely acting on the rock shown in the diagram?
A. Tension
B. Rotation
C. Compression
D. Shear

Answers

Answer: Tension

Explanation: Apx

Answer:

Your answer would be...

A - Tension

Explanation:

Trust me

⦁ In what stage of an animal’s life cycle do most cells differentiate?

Answers

Answer:

Reproduction

Explanation:

Answer:

Animals and plants produced by sexual reproduction begin life as a single cell, a fertilised egg or zygote . These cells must divide by mitosis to produce a multicellular organism.

i neeed help plz asap

Answers

Answer:

C is definitely your answer

C is the correct answer

Osmosis is important to cells because _______ *

a. cells contain fluids that are mostly water
b. cells are filled with fluids that are mostly sugar
c. cells need to be kept cool
d. cells need food

Answers

the answer would be A

The purpose of the control is to ..?

Answers

The control group is used as the constant variable

If these parents had 12 children how many are expected to have dimples

Answers

Answer:

6 to 4 it depends on how many family member they have you know what im saying if they have like say 100 family members some kids will have it

Explanation:

mark it brainly

What is the term for "anything that takes up space and has mass"?
A. Atom
B. Electron
C. Water
D. Matter

Answers

Answer:

D.) Matter.... would be your answer

The phylogenetic tree shows characteristics used in classifying land vertebrates.
frog
iguana
amnion
duck-billed
platypus
kangaroo
hair,
mammary
glands
gestation
long gestation
beaver
Which statement correctly represents the characteristics shared by the vertebrates?
The frog and the iguana both have amnion.
The frog and the beaver both have gestation and amnion.
The kangaroo and the beaver both have hair, mammary glands, and long gestation
The duck-billed platypus and the kangaroo both have amnion, hair, and mammary glands.

Answers

Answer:

The kangaroo and the beaver both have hair, mammary glands, and long gestation.

Explanation:

Because I had the same question on a test and I failed and see that this was the answer

The graph shows the effect of different wavelengths of ultraviolet light on mutation rate in
human skin cells. Which of the statements below supports the claim that UV radiation has an
effect on mutation rates? Select all that apply.
A)
Only UVA has an effect on mutation rates in human
skin cells.
B)
Only UVB has an effect on mutation rates in human
skin cells.
C)
Both UVA and UVB increase mutation rates in human
skin cells.
D)
A combination of UVA and UVB will increase the
mutation rate even more.
The independent variable is causing an effect on the
dependent variable in this experiment.

Answers

Answer: C and E

Explanation:

USA test prep

Answer:

C) Both UVA and UVB increase mutation rates in human skin cells.

E) The independent variable is causing an effect on the dependent variable in this experiment.

Explanation:

Got it right on USA Testprep

What is the basic unit - the building blocks – of all living things?
A Tissue
B Molecule
C Muscle
D Cell​

Answers

Answer:

The cell of course

Explanation:

.......


Select the correct answer.
Which comet was seen in 2007 and had an astounding fan-shaped long tail spread across the sky?
ОА.
Lexell's comet
ОВ.
Lovejoy comet
OC. Shoemaker-Levy 9 comet
OD. McNaught comet
Reset
Next

Answers

Answer:

the right answer us Mcnaught comet

Answer:

Its Kirchs Comet

Explanation: i took the test.

Which of the following best describes the cell below?
Capsule
Cell wall
Plasma membrane
Cytoplasm,
Ribosomes
Plasmid
P
Bacterial Hagellum
Nucleoid circular DNA)
OA
prokaryotic cell
OB
plant cell
OC.
protist cell
OD
eukaryotic cell

Answers

The answer is A. Prokaryotic cell

4) After a horrible car wreck, Jamie had a broken ankle, a few minor cuts, scratches, and a
large bruise across her chest from the seatbelt. While at the hospital, they kept checking her left
lung because it kept collapsing.
What systems are affected?
Why?

Answers

I think the respiratory bc of her lungs collapsing or maybe the cardiac one bc her oxygen could be blocked

What molecule do bacteria take in (use up)?

Oxygen
Carbon Dioxide
Water

(This is 7th grade science)

Answers

Carbon dioxide will be the answer

what is the function of the respiratory system?
1. to break down food.
2. to breathe.
3. to transport materials in the body.
4.to rid the body of waste.
please help me out!!

Answers

Correct answer is 2 - To breathe

Which of the following is true about protein molecules

Answers

um do you have the options to the question?
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