The alternative with the correct passive form to the sentence bellow is:

The modern F=ma form of Newton's second law occurs nowhere in any edition of the Principia even though he had seen his second law formulated in this way in print during the interval between the second and third editions in JacobHermann's Phoronomia of 1716. Instead, it has the following formulation in all three editions: A change in (1) ________________ is proportional to the motive (2) ________________ impressed and takes place along the (3) _________________ line in which that force is (4)________________. In the body of the Principia this law is applied both to (5) ________________ cases, in which an instantaneous impulse such as from impact is effecting the change in motion, and to cases of (6) ________________ action, such as the change in motion in the continuous deceleration of a body moving in a resisting medium. Newton thus appears to have intended his second law to be neutral between discrete forces (that is, what we now call impulses) and continuous forces.

Text- How to Tell if Your Sunscreen Protects You From the Sun - Here’s what you need to know.

Don’t go overboard with the SPF. The American Academy of Dermatology recommends using an SPF of at least 30, but most experts agree to not go over 50. It’s not that a higher SPF doesn’t provide any more protection, but once you get above 50, that increase is negligible. Case in point: SPF 50 blocks about 97% of UVB rays, while SPF 100 blocks about 99%.

But most sunscreen users don’t think about that; rather, they see a number that’s twice as high and assume they’ll get twice as much protection or that the protection will last twice as long, which cultivates a false sense of security that could lead to a bad burn. “SPF values above 50 are really misleading,” Lunder says. “They offer a very small increase in sunburn [UVB] protection, and they don't offer better UVA protection.” She says that the FDA is considering a rule to cap SPF values at 50, but nothing has been finalized.

And then there’s the fact that, although the increase in SPF doesn’t add much protection, it could increase your chances of negative side effects from the ingredients. “We do not recommend SPF of 50 or higher, as the minimal added protection does not outweigh the exponentially more active ingredients required to do so,” Chris Birchby, the founder of the sun-care line Coola, tells Teen Vogue. “More active ingredients increase the chances of skin irritation.”

Read the comic to answer question.

Read the following text to answer question.

Life on Earth has always been exposed to a certain amount of radiation ffom natural sources which comes in part from cosmic rays. Also present in our environment is radiation from the radioactive elements that occur naturally such as radium, thorium, and uranium.

One of the most serious problems that can result from radiation given off by nuclear reactions is damage to the genes, the cells in living organisms that control hereditary factors. Exposure to radiation can cause a mutation, a change in some inherited characteristics of the organisms. Only a very small proportion of mutations are beneficial to the organism.

The nuclear reactors that have been developed for experimental and peaceful purposes are surrounded by a heavy protective shield of concrete, or sometimes of lead, to protectthe people who work with them.

A further problem involves the disposal of radioactive wastes. As the number of nuclear reactors in existence has increased into the environment because they could create a potential hazard for all living things in the world.

Experimentation is going on constantly to find safe methods of getting rid ofthe harmful by-products of nuclear reactions.

Leia o texto a seguir.

Teen 'Fake Doctor' at Va. Hospital

A teenager, aspiring to be a doctor, allegedly gave medical directions to nurses and prescribed medication and minor medical procedures for patients without being challenged, hospital officials said.

The 17-year-old high school student is being investigated for allegedly impersonating a physician, officials at Inova Fairfax Hospital said at a news conference. No charges have been filed.

Using a hospital pager, the teenager allegedly intercepted from home telephone messages intended for one of the hospital’s doctors. He is accused of calling in medical prescriptions and ordering minor medical procedures for the patients, officials said.

Dr. Russell Seneca, chief of surgery, said no one was injured or harmed as a result of the youngster’s actions and that his orders — surprisingly to some doctors — ”were appropriate for the circumstances”.

Analise as afirmações a seguir:

I. O adolescente fingiu ser médico em cumprimento a um desafio.
II. O adolescente foi condenado.
III. Ninguém se machucou durante o ocorrido.
IV. Alguns médicos consideraram as orientações do jovem adequadas ao contexto.

Text

Some General Dos and Don’ts

Dos:

- Arrive in good time. The interview panel may be interviewing a lot of candidates so do not keep them waiting. Dress appropriately. Some organizations, especially technology companies, have a very casual dress code but, for most, a suit will be appropriate interview wear. Remember that you are being judged on the appearance that you present.

- Act appropriately, which usually means following the interviewer‟s lead. If you are offered a hand to shake, then shake it, by ut don‟t offer your own hand if nobody else seems interested.

-​​​​​​​ Engage with the interviewers. Smile, make eye contact, and build rapport.

-​​​​​​​ Answer the questions that are asked, using relevant examples where at all possible.

Don’ts:

-​​​​​​​ Be afraid to blow your own trumpet a bit. After all, nobody else is going to blow it for you. Do not lie or exaggerate. If you want the job, be enthusiastic and positive.

-​​​​​​​ Be over-familiar or share too much information. For example, the interviewers don‟t want to know how you‟re going to manage your childcare.

Match the columns.

1. Why isn´t reality TV popular with everyone? ( ) People featured show the extremes of their society.

2. What can you often see during the opening or closing credits? ( ) People seem to either love them or hate them.

3. What do the British shows have in common? ( ) Some people consider it sad to watch it.

4. Why do they love reality show? ( ) A phrase flash up somewhere informing that parts are scripted or set up.

Scientists urged decades ago that we buy ourselves some insurance by cutting emissions. We yawned. Even today, when millions of people have awakened to the danger, tens of millions have not. So the political demand for change is still too weak to overcome the entrenched interests that want to block it.
In Washington, progress on climate change has stalled. The administration has announced its intent to withdraw from the global Paris climate accord. And top Trump appointees insist that the causes of climate change are too uncertain and the scientific forecasts too unreliable to be a basis for action.

No 2.° parágrafo acima, lemos: “The administration has announced its intent to withdraw from the global Paris climate accord.”