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raketka [301]
3 years ago
5

What is your opinion on Global Warming?

Biology
2 answers:
7nadin3 [17]3 years ago
5 0
Well I agree with Al. We all well know what is the consequence of increased pollution , global warming greenhouse effect and all that. We know very well all our activities which are increasing threats to our planet. We know that our harmful activities are causing damages irrepeairable. Still we dont do anything. Even after knowing everything we do not realise our mistakes. I dont think the increased threats of global warming can be stopped.  
PolarNik [594]3 years ago
3 0
My opinion is that EVEN IF there is anything that humans can do to save our species,
we will argue, debate, play politics, bask in absurd conspiracy theories, fritter around,
dilly dally, and totally ignore the urgency before us, until a time when nothing we're able
to do can any longer have any effect.  And that's my opinion.
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discuss the electromagnetic spectrum and the combined absorption spectrum of chlorophylls a and b and the carotenoids. why is ch
Irina-Kira [14]

Answer:

In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy.[1] It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays.[2]

Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields. In a vacuum, electromagnetic waves travel at the speed of light, commonly denoted c. In homogeneous, isotropic media, the oscillations of the two fields are perpendicular to each other and perpendicular to the direction of energy and wave propagation, forming a transverse wave. The wavefront of electromagnetic waves emitted from a point source (such as a light bulb) is a sphere. The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength. Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.[3]

Electromagnetic waves are emitted by electrically charged particles undergoing acceleration,[4][5] and these waves can subsequently interact with other charged particles, exerting force on them. EM waves carry energy, momentum and angular momentum away from their source particle and can impart those quantities to matter with which they interact. Electromagnetic radiation is associated with those EM waves that are free to propagate themselves ("radiate") without the continuing influence of the moving charges that produced them, because they have achieved sufficient distance from those charges. Thus, EMR is sometimes referred to as the far field. In this language, the near field refers to EM fields near the charges and current that directly produced them, specifically electromagnetic induction and electrostatic induction phenomena.

In quantum mechanics, an alternate way of viewing EMR is that it consists of photons, uncharged elementary particles with zero rest mass which are the quanta of the electromagnetic force, responsible for all electromagnetic interactions.[6] Quantum electrodynamics is the theory of how EMR interacts with matter on an atomic level.[7] Quantum effects provide additional sources of EMR, such as the transition of electrons to lower energy levels in an atom and black-body radiation.[8] The energy of an individual photon is quantized and is greater for photons of higher frequency. This relationship is given by Planck's equation E = hf, where E is the energy per photon, f is the frequency of the photon, and h is Planck's constant. A single gamma ray photon, for example, might carry ~100,000 times the energy of a single photon of visible light.                                  

The effects of EMR upon chemical compounds and biological organisms depend both upon the radiation's power and its frequency. EMR of visible or lower frequencies (i.e., visible light, infrared, microwaves, and radio waves) is called non-ionizing radiation, because its photons do not individually have enough energy to ionize atoms or molecules or break chemical bonds. The effects of these radiations on chemical systems and living tissue are caused primarily by heating effects from the combined energy transfer of many photons. In contrast, high frequency ultraviolet, X-rays and gamma rays are called ionizing radiation, since individual photons of such high frequency have enough energy to ionize molecules or break chemical bonds. These radiations have the ability to cause chemical reactions and damage living cells beyond that resulting from simple heating, and can be a health hazard.

Explanation:

7 0
3 years ago
Identify what holds DNA, the hereditary information of a cell?
murzikaleks [220]

Answer:

chromatin network or chromosomes

6 0
2 years ago
What general part of the general circulation would you find the "doldrums"?
lutik1710 [3]
I think the Belt of the inter-tropical convergence zone is the general part of the general circulation found on the doldrums. This is a belt of low pressure which circles the Earth generally near the equator where the trade winds of the Northern and southern Hemispheres converge. Mainly characterized by convective activity which generates often vigorous thunderstorms over large areas.
3 0
3 years ago
Please help i'm stuck on this and it's due soon, questions are in the images, will give brainliest!
ANEK [815]

Answer:  Lydell Grant, acknowledging that he was wrongfully convicted of murder has only meant purgatory, nearly seven months of it. He is neither free nor behind bars, nor can he restart his life. The laggardly movement of his case for exoneration, which his supporters say only underscores the frustrations and larger belief that systemic racism is ingrained in the justice system, has left him in a different type of cage. A jury convicted Grant of the 2010 fatal stabbing of a man outside a Houston bar, sending him away for life. Grant spent his days in prison reading about the legal system and writing letters to whoever he thought would take up his cause. Then, in 2019, with the help of a legal team with the Innocence Project of Texas and forensic scientists who used emerging DNA technology, new evidence was collected that convinced Harris County District Attorney Kim Ogg to support a request for bond.Grant was released from a Texas prison just before Thanksgiving Day.In December, prosecutors confirmed that re-examined DNA recovered from the fingernails of the victim, Aaron Scheerhoorn, had yielded charges against a new suspect found through an FBI criminal database. Houston Police Chief Art Acevedo said Jermarico Carter of Atlanta, who had a criminal record, confessed to having stabbed Scheerhoorn and was arrested. Acevedo personally, and publicly, apologized to Grant.

                                Paragraph cited from NEWS by Erik Ortiz

8 0
2 years ago
What is the role of lactase? which sugar does the act on in reaction?
Dmitry [639]

Answer:

This enzyme helps to digest lactose, a sugar found in milk and other dairy products. Lactase is produced by cells that line the walls of the small intestine. ... Lactase functions at the brush border to break down lactose into smaller sugars called glucose and galactose for absorption.

Explanation:

Lactase is an enzyme produced by many organisms. It is located in the brush border of the small intestine of humans and other mammals. Lactase is essential to the complete digestion of whole milk; it breaks down lactose, a sugar which gives milk its sweetness.

6 0
3 years ago
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