Read the following article and select the best answer. Article: Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,000km, but sound travels only 344m. You can get some idea of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke come from his gun before the sound reaches your ears. This great speed of light produces some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km per minute. In some cases the light from one of tonight's stars started on its journey to you before you were born. Thus, if we want to be honest, we cannot say " The stars are shining tonight." We have to say, " The stars look pretty. They were shining four years ago but their light has only just reached Earth." Question: Light speed is _ than sound speed. - millions times faster - a million times slower - about millions of times faster - about a million times faster
about a million times faster

(Question)
Read the following article and select the best answer. Article: As a volunteer, you will discover the unique opportunity of visiting the real world beyond the tourist window and became immersed in the culture you visit. For most travelers, this time spent working on meaningful projects, and getting to know the local area and its people, is often cited as their most memorable, enjoyable and fulfilling life experience. Who can volunteer? Kaya Volunteers are 18-80 years old people with an adventurous spirit. Whether you have time for a 2-week trip or a 6-month break, travelling on your own, with a group or with your family, or you are a student, taking a break from your job, or have even retired, they will find a project that can use your help. Countries where you can volunteer: Asia-Pacific (Australia, India, Indonesia, Nepal, New Zealand, the Philippines, Thailand, Vietnam.) Africa (Botswana,Ghana,Kenya,Mozambique,South Africa,Zambia,Zimbabwe) Latin America (Belize,Bolivia,Brazil,Costa Rica,Ecuador,Peru) What type of projects can you do? Kaya's Project advisors work with you to decide which project is best for you and what type of work you would like to do. you can work in the following fields: Environmental preservation- From the Ecuadorian rain forest to the jungles of Thailand, repair the damage done to some of the most beautiful and diverse places on earth. Work with children- They have over 40 projects working with children across the world in orphanages, schools and shelters for the abused, disabled and disadvantaged. Sports - Through sports, their projects that can provide opportunities for health education and the development of life skills, such as teamwork, communication, discipline and self- confidence. Education - From English teaching to education programs for special needs and minority groups, give greater opportunity to the disadvantaged through education. All projects include airport pick-ups and drop-offs, accommodation, orientation and 24-hour support. Many of their placements also include all meals and some language classes so that you can get even... Question: What can we infer from the second part of this passage? - Only experienced people are needed. - Only grown-up people are welcome. - There isn't any restriction set on volunteers. - Few people are willing to do the voluntary work.
(Answer)
There isn't any restriction set on volunteers.

Ques: Read the following article and select the best answer. Article: The relationship between exercise and cancer has long both intrigued and puzzled oncologists and exercise physiologists. Exercise is strongly associated with lowered risks for many types of cancer. At the same time, exercise involves biological stress, which typically leads to a short-term increase in inflammation which can contribute to higher risks for many cancers. Now, a new study in mice may offer some clues into the exercise-cancer paradox. It suggests that exercise may change how the immune system deals with cancer by boosting adrenaline , certain immune cells and other chemicals that, together, can reduce the severity of cancer or fight it off altogether. To try to better understand how exercise can both elevate inflammation and simultaneously protect the body against cancer, scientists at the University of Copenhagen in Denmark and other institutions decided to closely examine what happens inside mice at high risk for the disease. So, for the new study, they began by gathering a group of adult lab mice. These animals generally like to run. The scientists then implanted melanoma skin cancer cells into the mice before providing half of them with running wheels in their cages while the other animals remained sedentary. After four weeks, far fewer of the runners had developed full-blown melanoma than the sedentary mice and those that had been diagnosed with the disease showed fewer and smaller lesions. They drew blood from both the exercising and sedentary animals and cells from any tumors in both groups. As expected, they found much higher levels of the hormone adrenaline in the blood of the exercising animals, especially right after they had been working out on the wheels but also at other times of the day. The body releases adrenaline in response to almost any type of stressful experience, including exercise. They also found higher levels of interleukin-6 in the blood of the runners. This is a substance that is released by working muscles and is believed to both increase and decrease inflammation... Question: According to the study, we can infer the fundamental substance to fight the cancer off is _ . - adrenaline - interleukin-6 - natural killer cells - genes
Ans: natural killer cells

Ques:Read the following article and select the best answer. Article: As a result of British colonial rule, English language is the second most widely spoken language in India after the Hindi. Though it appears to be a second language, there is no question about its immense growth over the years in Indian history. It is the main language accepted and spoken in the fields of business and education across all places in India. India is ranked the third largest English-speaking population in the world besides the US and the UK. English writing has blossomed in India and has reached a peak where Indian writers like Arundhati Roy, Vikram Seth and Salman Rushdie were able to distinguish themselves in the whole world. Many Indian authors bring out books on Indian culture and literature. Shobha De, a famous fashion and lifestyle columnist is one of the important writers to be mentioned who have paved the way for others to follow suit. Quite a few newspapers like The Hindu, Times of India and Indian Express have increased the popularity and acceptance of English in India greatly. They have played an important role in spreading English in all comers of the country. One of the major contributors in promoting English language development in India is the education system. Private schools and colleges play a major role in preparing students with spoken and written skills in English. The standard is so high that we can see young students actively taking part in group discussions and quiz competitions to show their talents all over the world. Indian movies don't lag behind . There are so many English movies that come out of India every year. The world's movie capital is not Hollywood but Bollywood, which is the nickname for the Indian film industry located in Mumbai. Movies like Bend It Like Beckham and Monsoon Wedding have great international influence. Question: In what areas is English language mostly used in India? - Science and technology. - Movie and entertainment. - Business and education. - Culture and art.

Ans:
Business and education.