Why don't we get our drinking water from the ocean?

If you're stuck at sea and thirsty, drinking seawater might seem like an option, but it's dangerous. Seawater is much saltier than your blood, (1) __________, making you more dehydrated. Your kidneys try to get rid of the extra salt, but they need fresh water to do that. Without enough fresh water, drinking seawater can lead to salt poisoning, causing serious damage to your cells and organs.

To survive in this situations, you need to find or create a source of freshwater. In the 4th century BCE, a philosopher described two ways of turning seawater into drinkable water: thermal desalination and reverse osmosis. Thermal desalination, an ancient method, (2) __________. Reverse osmosis uses pressure to push seawater through a membrane that filters out the salt. Both methods are still used today to make seawater drinkable, though each has its challenges. In terms of their efficiency, reverse osmosis is more energy-efficient and less wasteful than thermal desalination. (3) __________.

An alternative source of freshwater is wastewater. Reverse osmosis can purify wastewater more easily than seawater, as it contains less salt and fewer contaminants. By producing safe, drinkable water with reduced energy consumption, (4) __________.

In a survival situation at sea, drinking your urine or eating protein-rich foods is not a good idea, as it can make you more dehydrated. (5) __________. In extreme cases, people have resorted to drinking blood from animals as an emergency hydration source, though this is far from ideal and should only be used if necessary.

(Adapted from https://www.ted.com)

Maintaining a balanced diet is crucial for overall health and well-being. Nutritionists emphasize that (1) __________. Consuming a variety of foods ensures that individuals receive essential nutrients required for optimal body function. Additionally, (2) __________, which can have a negative impact on physical and mental health. A balanced diet also plays a key role in preventing chronic diseases such as diabetes, heart disease, and obesity. Moreover, proper nutrition supports immune function, helping the body to resist infections and illnesses.

Many people struggle to incorporate healthy choices into their diets. Often, (3) __________ that makes it difficult to maintain a balanced diet. This issue can be particularly evident in fast-paced lifestyles where convenience is prioritized over nutrition. Furthermore, (4) __________, making it challenging to adopt healthier eating habits. Social factors, such as peer pressure and cultural preferences, can also influence dietary choices, sometimes leading individuals away from healthier options.

To promote better eating practices, it is essential to (5) __________. Simple changes, such as meal planning and cooking at home, can lead to significant improvements in diet quality. Additionally, increasing awareness about the benefits of nutritious foods and providing accessible resources can encourage individuals to make more informed food choices.

Leaving school is a big change, and many young people face difficult challenges during this time.

First, many students feel worried because they are not sure about their next steps. (1) _______. These are very important choices for their future lives. This situation often causes a lot of stress and anxiety. However, if students connect their choices to their personal interests and goals, (2) _______.

Second, money is a major problem for many people. Higher education is expensive (3) _______. However, finding a job is also difficult for those who choose to work immediately. Without special skills, it is hard to earn a high salary. Many school leavers find it stressful to manage their money (4) _______.

Finally, school leavers often struggle because they do not have practical experience. The job market is very competitive, and (5) _______. Without experience, young people may have to take simple jobs that they do not enjoy. Additionally, they might need to improve "soft skills," such as professional communication and time management, which are necessary for success in a career.

(Adapted from: https://www.theschoolprintshop.co.uk/)

Choosing a career is a significant decision (1) __________. With so many options available, finding the right path can feel overwhelming. However, by considering key factors such as interests, skills, job market trends, and financial stability, you can make a well-informed choice.

First, it is important to reflect on your interests and passions. Think about what activities bring you joy and what topics naturally attract your attention. When you pursue a career that aligns with your passions, work becomes more enjoyable and rewarding. For example, someone fascinated by technology (2) __________.

In addition to interests, understanding your skills and strengths can help guide your decision. Consider what tasks you excel at and what comes naturally to you. (3) __________, careers in finance, engineering, or data science might be a great fit. Recognizing your strengths allows you to choose a career where you can thrive and achieve success.

Beyond personal preferences, researching job market trends is essential. (4) __________. In recent years, careers in technology, artificial intelligence, and sustainability have been on the rise, offering promising opportunities.

Finally, financial security is a key consideration. While following your passion is important, (5) __________. Understanding salary expectations, job benefits, and advancement opportunities can help you make a practical decision.

By carefully evaluating these factors, you can choose a career path that not only aligns with your passions and skills but also ensures long-term stability and success.

A 4D cinema is an exciting place to watch movies. It is different from regular cinemas because it has special effects that make you feel like you are inside the movie. In a 4D cinema, the seats move, and sometimes you feel things like wind, water, or even smells during the movie, (1) __________. For example, if there is rain in the movie, you might feel a light spray of water. If there is an action scene, (2) __________. Many people like 4D cinemas because they make watching movies more exciting. Kids, in particular, enjoy these effects because it feels like a real adventure. (3) __________ who want to try something new and thrilling. Watching a movie in 4D can be a little expensive, (4) __________.

However, 4D cinemas are not everywhere, so some people may need to travel to a big city to find one. Some people might not like the movement and effects if they feel dizzy or uncomfortable. But for those who enjoy it, a 4D cinema makes movies unforgettable. It turns a normal movie experience into something special, (5) __________.