PART A: Which statement best summarizes the 1950s attitude towards space colonization versus the modern view on colonizing other planets? A The author argues that the reasoning behind space colonization in the 1950s was optimism, whereas now the motivation comes from distress and fear of the future. B The author argues that the 1950s attitude towards space colonization was motivated by competition in the space race, but it is now prompted by ambition and greed. C The author argues that the 1950s attitude towards space colonization was naive and unrealistic, whereas now it is pessimistic and desperate. D The author argues that the reasoning behind space colonization in the 1950s was hope in the future, whereas now the motivation comes from a desire to return to the past.

the answer is option

your answer is c) experiments with water vapor showed that elements combine in specific proportions.

laughter and happiness are an essential part of life. laughing releases the body's "feel good" chemicals. thus, it provides long or short term relief from stress and or anxiety. more or less, laughing strengthens social connections and provides an easy approach in social related situations.

moreover, there are many benefits of laughter and humor. it's as if they play the role of superhero to combat anxiety and depression, according to researchers. happiness and laughter is the best medicine for teen mental health.

what happens in the body also affects the mind. the positive changes in physical health also have profound an impact on mental health. we have a lot to gain from laughing! medical effects of laughter have continued to validate the pain-relieving effect and benefits of laughter.

scientists tell us that laughter and humor actually, believe it or not, lower blood pressure, reduce stress hormones and increase muscle flexion. there are many benefits to happiness and laughter, and they so happen to increase the circulation of antibodies in the blood stream and make us resistant to infections.

as stated before, laughing releases your body's "feel good" chemicals, and on a related note, negative stress can cause your body to release chemicals that weaken your immune system which makes you more likely to contract a disease. luckily, laughter reduces negative stress and prevents those chemicals from being released.

all in all, you may want to consider laughing as much as you can!