Natural Resources and Human Impact — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Bees pollinate flowers, helping crops like apples and almonds grow fruit.
Pollination is essential for many of our food crops.
2. Forests release oxygen that humans and animals breathe to live.
Plants exchange carbon dioxide for oxygen daily.
3. Clean water is needed for drinking, cooking, and watering crops.
Fresh water is a limited resource we must protect.
4. A community of living things and their environment is called an ecosystem.
Ecosystems link plants, animals, soil, water, and air.
5. The variety of plants and animals in an area is called biodiversity.
High biodiversity makes ecosystems stronger and stable.
6. Tree roots hold soil in place so it does not wash away in rain.
Forests prevent erosion that damages farmland.
7. Farmers need bees and clean water to grow healthy crops.
Agriculture depends on many parts of an ecosystem.
8. Cutting down too many trees can hurt animal habitats in the forest.
Deforestation removes shelter and food for wildlife.
9. Saving resources for the future is called conservation.
Conservation balances human needs with ecosystem health.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Bees
→ Pollinate flowering crops
Pollinate flowering crops
Forests
→ Release oxygen into the air
Release oxygen into the air
Clean water
→ Used for drinking and farming
Used for drinking and farming
Soil
→ Holds nutrients for plant roots
Holds nutrients for plant roots
Each part of an ecosystem provides a service we depend on.