1. When you go for shopping, what are you expected to do to save the environment?
A. Buy paper towels and napkins.
B. Do not reduce the frequency of shopping.
C. In any store, use a bag even if it is not needed.
D. Shop the product that has as little packaging as possible.
2. Which is a quantitative observation?
A. The liquid in the bottle is cloudy.
B. The graduated cylinder has 15 mL of liquid.
C. The colour of the liquid is darker than the other.
D. The graduated cylinder holds lesser liquid than the other.
3. Which of the following is TRUE about the world’s population?
A. declining
B. growing slowly
C. growing rapidly
D. at zero population growth
4. Which of the following can human contribute to extinction?
A. conservation
B. habitat destruction
C. ecosystem survival
D. resource management
5. Which organism brings back the materials to the abiotic environment?
A. Producer
B. Carnivores
C. Herbivores
D. Decomposers
6. Which of the following is the role or profession of an organism in an ecosystem?
A. habitat
B. production
C. consumption
D. ecological niche
7. Which of the following is an abiotic component of the ecosystem?
A. air
B. plants
C. animals
D. decomposers
8. What are life forms that are not seen by the naked eye and are found in soil, water, air and even inside the body?
A. Algae
B. Protista
C. Organism
D. Microorganism
9. Which of the following is a process by which animals use carbohydrates and oxygen to produce CO2 and H2O?
A. respiration
B. condensation
C. photosynthesis
D. decomposition
10. Which of the following herbivores are known for?
A. producers
B. carnivores
C. primary consumers
D. secondary consumers
11. It refers to the collection of elements capable of increasing, decreasing or remaining, more or less, stable.
A. Group
B. Members
C. Population
D. Community