During the 2004 Tsunami, saltwater flowed inland killing plants and insects in the soil. The saltwater caused a change in the environment. In this example a ____ change caused a _____ change.

Question 2 options:

abiotic, biotic

abiotic, abiotic

biotic, biotic

biotic, abiotic

abiotic, biotic

A landowner sprays his land with pesticide to kill insects. Refering to the food chain above for the land, which of the following would most likely happen due to this change?

Question 4 options:

Bluebird population will decrease due to less food

Snake population will increase due to more bluebirds

Grass population will decrease

Grasshopper population will increase

Grasshopper population will increase.

In this example, a biotic change caused an abiotic change.