Considering the text, fill the parenthesis with T (true) or F (false):
( ) The drones can drop seeds in places which are hard to access.
( ) The drones will make a lot of noise, which can pose a risk to nature.
( ) Fletcher and his team expect that the drones will have a positive impact in the long run
( ) The drones can only help spread tree species.
( ) Despite being simple, BioCarbon’s reforestation scheme is efficient.
The correct sequence, from top to bottom is:
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)
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)
Gabarito comentado
Resposta: Alternativa D (T‑F‑T‑F‑T)
Tema central: interpretação de texto aplicada a afirmações verdadeiras ou falsas. Aqui é preciso identificar informações explicitamente apresentadas no texto e distinguir o que é inferência válida daquilo que não é sustentado pelo autor.
Resumo teórico rápido: procure por pistas lexicais e referências diretas. Frases como “often in areas where a human can’t reach” ou citações diretas de personagens (ex.: Fletcher) valem como prova para marcar “T”. Afirmações absolutas (ex.: “only”) exigem atenção — se o texto cita exceções, a afirmação é falsa.
Justificativa detalhada das cinco sentenças (por ordem):
1) “The drones can drop seeds in places which are hard to access.” – Verdadeiro (T)
O texto afirma que os drones podem operar “often in areas where a human can’t reach”, portanto a ideia de alcance em locais de difícil acesso está explicitamente sustentada (Wired, 2015).
2) “The drones will make a lot of noise, which can pose a risk to nature.” – Falso (F)
Embora o texto mencione um “buzz”/“hum” como imagem inicial, não diz que o ruído será intenso nem que representará risco ambiental. Isso é inferência não apresentada no texto; marca‑se F.
3) “Fletcher and his team expect that the drones will have a positive impact in the long run.” – Verdadeiro (T)
Fletcher declara que “we can make a real long‑term impact. We hope to do a lot of good in the world.” Frase direta que confirma expectativa de impacto positivo.
4) “The drones can only help spread tree species.” – Falso (F)
O texto afirma que, além de espécies de árvores, os drones espalharão “microorganisms and fungi designed to improve the soil quality”. A palavra “only” torna a sentença incompatível com o texto.
5) “Despite being simple, BioCarbon’s reforestation scheme is efficient.” – Verdadeiro (T)
O autor chama o método de “simple and efficient” e dá dados comparativos (3.000 vs 36.000 sementes/dia) que sustentam a eficiência mencionada.
Análise rápida das alternativas incorretas:
- A, B, C, E não coincidem com a sequência T‑F‑T‑F‑T; por exemplo, opções que colocam a 4ª como T ignoram a menção a microorganismos/fungos; opções que colocam a 2ª como T assumem risco por ruído sem suporte no texto.
Dica prática para provas: sublinhe frases-chave e busque correspondência lexical (ex.: “often in areas where a human can’t reach” → “hard to access”). Cuidado com palavras absolutas (“only”, “always”, “never”) — elas frequentemente são armadilhas quando o texto apresenta exceções.
(Fonte usada pelo texto: Wired, 2015 — artigo adaptado citado no enunciado)
Gostou do comentário? Deixe sua avaliação aqui embaixo!
