Read the following article and select the best answer. Article: Have you ever noticed that some people am able to effortlessly remember even the most boring details, and quickly understand new things, and wished that you too could be like that? To unlock the full potential of you brain. you need m keep it active and acute. But how? Check out these tips: .Exercise&get your body moving Exercising doesn't just exercise the body; it also helps to exercise your brain. Without regular exercise your blood vessels<<)begin m lose the ability to effectively pump blood and it also mduws the amount of oxygen and nutrients thatyour blood carries to your brain. When the nutrients don't make it them, the brains ability to function is compromised. To prevent this from happening, make sure you get moving every day. Walking, swimming and dancing arc all excellent activities. Get rid of stressorsbnd seek help for depression Among the most brain-damaging stressars is severe depression, which is actually often mistaken for a memory problem since one of its primary symptoms is the inability to concentrate. If you can't concentrate, yon might feel like you am conrtantly forgetting things. Depression increases the levels of codisol in your brain, which affects your memory. Seek professional help to get rid of your depressionyour brain will thank you. .Feed you brain 50 to 60 percent of the brain's overall weight is pure fat, which is used to insulam its billions of nerve cells. The better insulated a cell is, the quicker you will be thinking. This is exactly why paints are advised.feed their young children whole milk. Thus. eating foods chat contain a healthy mix of fats is vital for long-term memory. Some excellent food choices include fish end dark leafy green vegetables. Question: Why should parents feed their babies whole milk? - Because babies' brains need fat to grow and work properly. - Because whole milk is very easy for babies to digest - Because no other food is mom suitable for babies than milk. - Because less than half of the brain's overall weigbt is pure fat
Because babies' brains need fat to grow and work properly.

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Read the following article and select the best answer. Article: Some of the world's most significant problems never hit headlines. One example comes from agriculture. Food riots and hunger make news, but the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world's major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring. The authors take a vast number of data pointing for the four most important crops; rice, wheat, corn and soybeans. They find that on between 24 and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s. There are two worrying features of the slowdown. One is that it has been particularly sharp in the world's most populous countries,India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse. Second, yield growth has been lower in wheat and rice than in corn and soybeans. This is problematic because wheat and rice are more important as foods' accounting for around half of all calories consumed. Corn and soybeans are more important as feed grains. The authors note that we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world. The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organization has argued. Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to _ to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen. Question: Why does the author mention India and China in particular? - Their self-sufficiency is vital to the stability of world food markets. - Their food yields have begun to decrease sharply in recent years. - Their big populations are causing worldwide concerns. - Their food self-sufficiency has been taken for granted.
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Their self-sufficiency is vital to the stability of world food markets.

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