16. painkilling chemicals that occur naturally in the body are known asa. hormones. b. triglycerides. c. endorphins. d. platelets.17. specificity is important to a fitness program because ita. makes the workout more enjoyable. b. allows you to choose the right types of activities to improve a particular fitness element. c. increases the demands you place on your body. d. you to exercise beyond your regular daily abilities.18. olympic athletes have lower resting heart rates becausea. their lungs tend to be naturally larger. b. they have a lot of muscle mass due to weightlifting. c. they exercise regularly, which improves the efficiency of their heart. d. they tend to eat low-fat diets.19. what does a measure of your cardiorespiratory endurance tell a fitness professional? a. your anaerobic fitness, or how well your leg and arm muscles workb. how long you can sustain a weightlifting programc. what type of exercises you've been doingd. your aerobic fitness, or how efficiently your heart is working20. which type of fat may lower the risk of heart disease? a. saturated fatb. trans fatc. unsaturated fatd. cholesterol

dear friend:

  i hope this letter finds you in soaring spirits and vibrant health. as you had expressed the wish to know about culture, traditions, and unity of india in your previous letter, in the following lines i have tried my best to give you glimpses of our culture, traditions, and unity. you will be amazed to know that our culture is the oldest culture in the world and the birth place of hinduism, buddhism, jainism, and sikhism. you won’t find any other culture as varied and multi-colored, multi-lingual as ours. each region has its own unique culture, traditions, language. there are 22 official languages in india.

  basically, india is a spiritual country with orthodox traditions. for example the people of india believe in traditions set by their wise forefathers. arranged marriages, joint-family system, universal brotherhood, vegetarianism, celebrating festivals such as diwali, holi, eid, etc., are the salient features of our culture and traditions.

  another unique aspect about our country is ‘unity in diversity’. in spite of the multi-lingual, multi-religious, multi-traditional, multi-cultural society, people live peacefully together, respecting one another’s views, cultures, traditions, and differences. i am sure you would love to visit india soon, and have a first-hand experience of the multi-colored culture. give regards to uncle and aunt. do visit india with your family and experience our hospitality.

your friend,