1. Words adoptive = to become parent of a child that isn't your own claim

orbit = to go around something

receive = get

setback = a problem or event that makes things worse than they were

Soviet Union = largest communist country that existed between 1917 and 1991

space agency = organisation that is in charge of space flights

space race = the United States and the Soviet Union both wanted to be the first to put a man on the moon

splash down = to land in water

suffer = to experience or go through something that is bad

surface = the top part of something



14.

Words

• 
  altitude = how high up something is
  
• 
  cacao = seeds from which chocolate is made
  
• 
  decade = ten years
  
• 
  endanger = to be a threat to something
  
• 
  equator = line around the middle of the earth
  
• 
  extinct = die out; not exist anymore
  
• 
  century = a hundred years
  
• 
  depend on = need
  
• 
  fungal disease= disease caused by a simple plant that has no leaves and grows in the ground or on other plants; mushrooms are a type of fungus
  
• 
  global warming = an increase in the world's temperatures caused by growing carbon dioxide levels in the atmosphere
  
• 
  humidity = the amount of water that is in the air
  
• 
  in addition = also
  
• 
  mountainous = in the mountains
  
• 
  pest = a small animal or insect that can destroy crops and plants
  
• 
  researcher = person who studies a topic in order to find out more about it
  
• 
  resistant = here: it cannot be destroyed or damaged
  
•