Vocabulary for space travel articles

The (a)   from the sun is a critical source of energy for life on Earth.

Some scientists believe that humans have to (a)   other planets to ensure our future survival.

Definition: A territory settled and controlled by a group of people, often from another region or country.

(a)  

The (a)   of Africa by European powers had long-lasting effects on its societies and economies.

Synonym: Enrich, nurture, inseminate

• manure

• fertilize

• impoverish

• exhaust

Organic (a)   is increasingly popular among environmentally conscious farmers.

ome cities in the world do not have proper facilities for the disposal of (a)   .

She decided to turn (a)   after watching a documentary about how poultry is raised.

______ energy is a sustainable alternative to fossil fuels.

• Atmospheric

• Limited

• Geothermal

• Effluent
  

Space seems (a)   vast, with no end in sight.