Walking is not the most exciting form of exercise a person can take on for fitness. Yet it is low impact and requires no fancy equipment. That makes walking a simple activity for those new to exercise. Walking is less likely than other exercises to cause injury to leg tendons and muscles. All it requires is a good pair of sneakers--no
cables, stylish outfits, or weights required. Of course, a person could increase the benefit of a workout by adding weights or speed walking
How does the third sentence ("That makes walking") support the main idea of the paragraph?
O it points out that walking is a good introduction to exercise for beginners
It says that walking is too easy for people who have experience with exercise
Oit points out that beginning exercisers may not like walking because it is too easy
O it says that walking is less costly than other activities because it needs no equipment

C: it says that walking is less costly than other activities because it needs no equipment

Explanation:

if it helped let me know with the rating and thanks <33

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.