Questões de Concursos Inglês

Re-Planting a Forest, One Drone at a Time

That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.

BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:

1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.

2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.

3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.

4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.

5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.

Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.

On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”

(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)

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There is nothing conventional about 17-year-old Michael Fuller’s relationship with music. As someone with high-functioning autism who sees the world through sound, creating melodies from the bustle of the high street or trains on the tracks feels more natural than any social interaction. This hardwired connection to sound has been with him for as long as he can remember.

By the age of 11, Michael could play Mozart by ear, having taught himself to play the piano through a mobile phone app. The app highlighted notes on a keyboard as classical music played. He describes his unusual musical talent as “downloading” music into his head. His mother, Nadine, remembers that as a child Michael would “suddenly pop up and say: ‘I’ve got a symphony’”. Michael took to the piano and found he could quickly perform complex pieces from memory.

“I liked what I was hearing, sought more music and began studying through Google and YouTube,” he remembers. “It was very organic. I would listen in great depth and the music would be implanted in my mind. I could then just play it on the piano – all without being taught.”

Growing up in a family that listened to reggae over classical music, Michael feels “very much aware” of how different his approach is to music – symbolised by the way he taught himself piano as a child. This, his mother says, came as a “surprise to the family and myself – I’d never listened to classical music in my life”.

It was not long after learning to play the piano that Michael started composing his own works. Describing this process as “making music with my mind”, Michael says composing classical symphonies “helps me to express myself through music – it makes me calm”. Michael wants to nurture his song writing to achieve his ambition of becoming a modern mainstream classical artist. He wants to control the creative process, unlike typical modern-day composers, who he says “write blobs on a page, hand it over to the musicians – then say bye-bye and stay in the background and get no recognition”. Instead, Michael is determined to take centre stage.

(Alex Taylor. www.bbc.com, 27.03.2018. Adaptado.)

Texto 3

What is domestic violence and abuse?

When people think of domestic abuse, they often focus on domestic violence. But domestic abuse occurs whenever one person in an intimate relationship or marriage tries to dominate and control the other person. Domestic violence and abuse are used for one purpose and one purpose only: to gain and maintain total control over you. An abuser doesn’t “play fair.” Abusers use fear, guilt, shame, and intimidation to wear you down and keep you under their thumb. Your abuser may also threaten you, hurt you, or hurt those around you.

Domestic violence and abuse do not discriminate. Abuse happens among heterosexual couples and in same-sex partnerships. It occurs within all age ranges, ethnic backgrounds, and economic levels. And while women are more commonly victimized, men are also abused – especially verbally and emotionally. The bottom line is that abusive behavior is never acceptable, whether it’s coming from a man, a woman, a teenager, or an older adult.

From: https://goo.gl/ZoQWV6. Accessed on 11/07/2018