Foram encontradas 50 questões.
Analise as afirmativas abaixo.
1. Uma alta pressão de pastejo sempre representa uma condição de baixa oferta de forragem.
2. A taxa de lotação representa um critério correto para medir a eficiência de uma propriedade pecuária.
3. O pastejo rotacionado é o método que promove o uso de uma maior lotação em razão da maior taxa de acúmulo de forragem quando comparado ao pastejo com lotação contínua.
4. O pastejo com lotação contínua normalmente resulta num maior ganho por animal por permitir uma melhor seleção da dieta pelos animais.
5. O tamanho do bocado animal é dependente da estrutura da pastagem.
Assinale a alternativa que indica todas as afirmativas corretas.
Provas
Analise as afirmativas abaixo.
1. O manejo visa conciliar o máximo ganho por animal com a máxima produção do pasto.
2. A pecuária brasileira apresenta baixos índices zootécnicos porque é praticada em condições de pastejo contínuo.
3. O método de pastoreio rotacionado, com menor tempo de ocupação, torna a dieta dos animais mais uniforme ao longo do tempo.
4. O planejamento forrageiro visa a organização da propriedade como um todo permitindo ao proprietário um melhor gerenciamento.
5. A oferta de forragem de 2,5% do peso vivo é normalmente utilizada em condições de pastejo para não haver limitações no consumo diário dos animais.
Assinale a alternativa que indica todas as afirmativas corretas.
Provas
Analise as afirmativas abaixo.
1. Capacidade de suporte é o número de animais existentes numa pastagem.
2. A pressão de pastejo (PP) ótima é aquela que contempla um máximo ganho por animal e por área.
3. A lotação é definida pela carga animal relacionada com a oferta de forragem.
4. A pressão de pastejo de mantença é aquela que mantém um ótimo desempenho dos animais.
5. No IAF ótimo deve-se retirar os animais do piquete para haver um melhor rebrote do pasto.
Assinale a alternativa que indica todas as afirmativas corretas.
Provas
Ao estabelecer um critério de manejo em um experimento de pastejo, visando testar diferentes espécies forrageiras, você optaria por qual das alternativas abaixo?
Provas
Que explicação você daria para justificar a um produtor que o Capim Mombaça deve ter o ingresso dos animais quando atingir 90 cm de altura e a retirada com 50 cm de altura, quando em pastoreio rotacionado?
Provas
O funcionamento da pastagem como um sistema ecológico é regido por alguns princípios básicos determinantes dos diferentes níveis tróficos de produtividade e que devem ser bem entendidos para que possam ser adequadamente manejados pelo homem.
Esses princípios podem ser resumidos em:
1. O funcionamento do sistema depende fundamentalmente de um fluxo de energia cuja “entrada” no sistema depende da radiação solar.
2. A “captura” da energia incidente depende de uma superfície de captação (folhas), cujo tamanho e cuja eficiência de transformação da energia solar em energia química depende da disponibilidade de nutrientes assegurada pela absorção (raízes) e reciclagem de nutrientes.
3. O pastejo afeta ambos processos: o fluxo de energia ao “remover” superfícies de captação; o ciclo de nutrientes ao acelerar a mineralização e a disponibilidade de nutrientes através de sua retirada via produto animal.
Sendo assim, é correto afirmar:
Provas
Text
Thinking the unthinkable
Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting icecaps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy.
It’s strange to recall that, before the 1960s, few people knew of the damage we were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world.
In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable.
In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer.
By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population.
‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late.
Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will…
In the sentence:
“By 1979, Lovelock had put forward his theories on the environment, in his first book.”
The word “his” is used twice. In both cases it refers to:
Provas
Text
Thinking the unthinkable
Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting icecaps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy.
It’s strange to recall that, before the 1960s, few people knew of the damage we were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world.
In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable.
In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer.
By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population.
‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late.
Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will…
About Professor James Lovelock, it is correct to state that:
Provas
Text
Thinking the unthinkable
Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting icecaps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy.
It’s strange to recall that, before the 1960s, few people knew of the damage we were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world.
In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable.
In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer.
By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population.
‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late.
Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will…
The words: However and ultimately, are being used in the text as:
Provas
Text
Thinking the unthinkable
Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting icecaps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy.
It’s strange to recall that, before the 1960s, few people knew of the damage we were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world.
In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable.
In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer.
By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population.
‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late.
Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will…
Choose the alternative that presents the correct meaning for the word “conserving”.
Provas
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