What causes Sadness.
Does it affect our body?.
さようなら頭のいいお母さん。​

Answer:

a friend who helped me.sometimes I try answering the questions my self.also I get some answers from this place.

There are five questions which are related to the Drilling down into petroleum's impact on life on Earth.

1. C. Iran produces more oil than the United States.

RPR is referred to as the Reserve to Production Ratio which is measured in years. Higher RPR of Iran demonstrates that it has more extraction rate than United States.

2. B. Human learned how to extract and burn fuel.

The major shift in Carbon cycle is because fossils and fuels have been excessively used extracted and burned for fuel and energy.

4. A. Trees of the Amazon remove Carbon dioxide from the air.

Forests are essential because they help remove carbon dioxide from air. The existing forests of Amazon are absorbing carbon dioxide which results in moderate climate and reduced climate change.

5. A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.

The biggest threat to coral reefs is bleaching event. Warming the waters spark to bleaching events.

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Given what we know about the use of spectrums, we can confirm that the positions of peaks and dips provide information as to the elemental composition of the object in question.

The question asks about the dips and peaks of a spectrum, which allows us to assume we are dealing with Infrared spectroscopy and IR spectrums. This is defined as the measurement of how certain matter interacts with infrared radiation.

These graphs are used to measure how this matter absorbs, reflects, or even emits said radiation. Therefore, the use of spectrums allows us to infer as to the chemicals present or functional groups of an object, and therefore its elemental composition.

When looking at the spectrum graph, we will see that at times the curve dips down, which indicates that less light is transmitted. That means light is being absorbed. Due to the fact that bonds absorb different frequencies of light, the peaks tell you what kinds of bonds are present from which we can identify the elemental composition.

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Answer:

B

Explanation:

So I'm guessing it's B then

Answer:

Sources:

Answer:

Scientists show evidence that nitrogen acquired during Earth's formation came from both the inner and outer regions of the protoplanetary disk. Nitrogen is a volatile element that, like carbon, hydrogen and oxygen. Nitrogen makes up 78 per cent of the air we breathe, and it's thought that most of it was initially trapped in the chunks of primordial rubble that formed the Earth. When they smashed together, they coalesced and their nitrogen content has been seeping out along the molten cracks in the planet's crust ever since.

Linkage maps and physical maps are NOT the same. A linkage map measures the number of recombination events in a given chromosome fragment.

A linkage map is based on the frequency of recombination events between genes or molecular markers.

This frequency indicates the number of events in which a single chromosomal fragment recombines between two or more genes or molecular markers during meiosis.

Conversely, a physical DNA map indicates the physical locations of genes (molecular markers) and nucleotide (DNA) sequences of interest, which is useful to identify genes by positional cloning.

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Answer:

A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.

The comparison of an active solar heating system with a radiator system gives;  Solar systems use the sun's energy to heat water without the need for mechanical equipment to disperse the heat, where radiator systems require fuel to heat the water.

Active solar heating systems employ solar energy to heat a fluid (liquid or air), which is then transferred to the interior area or stored for later use.

In conclusion, an active solar heating system and a radiator system are all subs of heat energy

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1.a.In agriculture cultural control is the practice of modifying the growing environment to reduce the prevalence of unwanted pests. Examples include changing soil pH or fertility levels, irrigation practices, amount of sunlight, temperature, or the use of beneficial animals or insects.

1.b. Cultural control is using the production or utilization methods of a commodity with a concern for insect management. Cultural control practices are usually multipurpose technical procedures that create environments that either avoid high-risk situations for infestations or develop unfavorable conditions for pests.

1.c.Simplicity and low cost are the primary advantages of cultural control tactics, and disadvantages are few as long as these tactics are compatible with a farmer's other management objectives (high yields, mechanization, etc.).

Here,

Mass of the object = 10 kg

Linear momentum of the object=100kg m/s

And , we have to find it’s velocity??

But we do know that linear momentum (p) is mass(m)× velocity (v)

P=m×v

V=p/m

Substituting the value here we get,

V= 10/100

Therefore, v= 0.1m/s.

Answer:

Elevated white blood cell counts indicate infection, inflammation and some forms of cancer or leukemia. Low white blood cells counts can indicate viral infections, bone marrow abnormalities or overwhelming infections and sepsis (blood poisoning).

Answer:

Within double-stranded DNA, the nitrogenous bases on one strand pair with complementary bases along the other strand; in particular, A always pairs with T, and C always pairs with G. Then, during DNA replication, the two strands in the double helix separate.

Explanation:

The four nitrogenous bases of DNA are thymine, adenine, guanine, and cytosine. Guanine and cytosine are bound together by three hydrogen bonds; whereas, adenine and thymine are bound together by two hydrogen bonds. This is known as complementary base pairing.

Answer:

the answer is sound energy

Explanation:

Answer:

Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved. Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.

To give one classic example, the forelimbs of whales, humans, and birds look quite different on the outside. That's because they're adapted to function in different environments. However, if you look at the bone structure of the forelimbs, you'll find that the organization of the bones is remarkably similar across species. It's unlikely that such similar structures would have evolved independently in each species, and more likely that the basic layout of bones was already present in a common ancestor of whales, humans, and birds.

Answer:

because visual images are held in sensory store/memory for up to 1/4 second

You can "see" your hand briefly because visual images are held in Sensory

Store/Memory for up to about 1/4 second.

When the sensory organ involving the eyes views an object briefly, the

information is usually passed to the brain which tells the type of object and

the action to take in response to the stimuli.

In this case, the visual image are usually held in the sensory

store/memory(brain) for few seconds which is why it is seen briefly even

after closing the eyes.

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Answer:

Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. ... There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. 

Explanation:

because it is

Answer:

Most likely 2

Explanation:

Have a great day

Answer:However, this species is breeding with the native Gila trout. Scientists recently observed that the Gila trout were becoming extinct. What is the cause of their extinction? The European buckthorn was introduced to North America as an ornamental plant.

Explanation:

that's because when they become extinct it makes them turn

Answer:

The movement of food through the gastrointestinal tract by the contraction of muscles is called Peristalsis.

Answer:

C. Glucose, a nonpolar molecule, can pass freely across the phospholipid bilayer from high to low concentration is correct answer

The Desert Bighorn has the heaviest and largest horns out of the options.

I hope this helps!

Answer:

The term biotic factors refers to the way in which an organism -- such as a snake -- interacts with its environment or ecosystem. ... Biotic factors of snakes involve how they impact the necessary balances that make their ecosystem function, especially with regard to a snake's role as both predator and prey.

Answer:

a space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed. The main one is between the frontal and parietal bones.

Answer:

Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.

Explanation:

Answer:

All carbohydrates, including sugar, therefore contain the same three elements: carbon, hydrogen, and oxygen. Different arrangements of these elements form single units to make different types of carbohydrates.

Answer:

1.It mainly comes from foods rich in carbohydrates, like bread, potatoes, and fruit. As you eat, food travels down your esophagus to your stomach. There, acids and enzymes break it down into tiny pieces. During that process, glucose is released.

Answer:

I think 4th option is correct

.....................

Answer:

Hepatitis definitely but Herpes is double stranded but I’m not sure.

Explanation:

Answer:

sarcoplasmic reticulum