SUMMATIVE TEST Test 1: Direction: Choose the letter of the best answer. Write your answer on the space before each number. 1. Which of the following is an example of biotic component of an ecosystem? A. Soil B. Air C. Plants D.Water 2. The following are example of biotic factor of a water ecosystem except for A. Shrimps B.Crabs C.Sea weeds D.Mudfish 3. Which of the following abiotic factor of a ricefield may affect and hinder the growth of the rice. A. Fertile soil B. Presence of golden snails C. Insufficient water D. Presence of pest 4.Which of the following abiotic factor may cause fish kills in a fishpond? A. Insufficient oxygen in water B. Presence of predator C. Sunlight D. Enough food for the fishes 5. What will happen with the biotic components of a river if there is too much garbage in it? A. The water will be polluted B. Fishes might die as they intake some of the garbage C. Population of plants in water will increase D.Flood may occur 6. What might happen with the grasses on the surface of a forest if there is no sunlight reaching the area? A. The grasses will grow abundantly B. The grasses will grow big C. Lack of sunlight may cause the leaves of grasses dry D. Lack of sunlight may hinder the proper growth of grasses Page 3​
