Some sentences provide new information, while others elaborate, clarify, or restate the key concept of a paragraph. Which sentences from the text develop the key concept that the Curiosity landing was a tricky one? Select all that apply. (A) Curiosity still had to be slowly—and safely—deposited on the surface. (B) Throughout the cruising stage, the ship had to angle in at just the right trajectory, or track, in order to use the Mars atmosphere to slow its velocity. (C) The adventure began with the mission launch on November 26, and, after an eight-month journey crossing 354 million miles, the vessel approached its destination. (D) The Mars rover went right to work exploring the 96-mile-wide Gale Crater. (E) The contraption appears slightly animalistic, with its one cyclopean eye gazing from the main camera on its stalk neck. (F) Curiosity itself was safely housed in a heat shield that would have to separate and fall away as it approached the ground. (G) Curiosity even used a laser to vaporize layers of rock.

laughter improves people's emotional and well-being.   kavita khajuria is a psychiatrist and he has defined laughter as " physical expression of humour and joy that has numorous protective qualities." when you feel under stress or sad because you have argued with a person you love, you need to laugh to feel strong enough to face the problems.

when you have an exam , you probably feel under stress. laughing will you release this tension. humour decreases the hormones that cause stress. k. khajuria   says that the brain releases some chemical components when we laugh. these chemical components are called neurotrophic factors and they are very important. they support the neurons in the brain and encourage the growth of new neurons. as a conclusion, you should laugh a lot before giving your exam. laughing will you with your exam and with your brain.

if you are having difficult times with friends or family members, laughing will also you face these problems. alannagh kelly is an assistant psychologist. she thinks that laughter can   make anger and anxiety vanish in the air. laughter can set a new and exciting atmosphere among people and it can make the bonds bewteen people stronger. so, if you are having a difficult time with someone you love, invite him / her to watch a comedy. you will probably make peace.

laugher will certainly protect you against stress and emotional pain. watching a comedy   may be a solution to stress or damaged bonds. " this remedy is fun , free, and best of all, no instructions needed."   alannagh kelly has said in her blog.

dont have the answer