Question

snapshot - challenge yourself by answering the sol style questions below - these questions can come an 6th grade or a previous 7th - grade skill.
7th grade science: biotic and abiotic factors
every ecosystem is made up of living and nonliving parts that work together to support life. the living parts, called biotic factors, include plants, animals, bacteria, and other organisms. the nonliving parts, called abiotic factors, include sunlight, temperature, water, soil, and air. both types of factors are important because they interact and depend on each other, for example, plants need sunlight and water to grow, and animals depend on plants for food and shelter. understanding biotic and abiotic factors helps us learn how ecosystems stay balanced and how changes in one part can affect the whole system.

question	reasoning

| which is a correct pair of biotic and abiotic factors?
a. bird – rain
b. cloud – fungus
c. wind – tree
d. temperature – deer | |
| a plant needs sunlight, water, and soil nutrients to survive. these all represent:
a. biotic factors
b. abiotic factors
c. predators
d. organisms | |
| which change would most affect the abiotic factors in a forest?
a. a new predator moves in
b. a disease kills many trees
c. a long period of drought occurs
d. a new plant species grows | |

Explanation:

1. Biotic factors are living organisms; abiotic factors are non-living. A bird (living) and rain (non-living) form a correct pair.
2. Sunlight, water, and soil nutrients are non-living, so they are abiotic factors.
3. Drought affects water availability (an abiotic factor), while other options affect biotic factors.

Answer:

1. A. Bird – rain
2. B. Abiotic factors
3. C. A long period of drought occurs