You are presented with the question "sulfur can cause what?" and the following answer choices:  - Greenhouse gasses  - chemical changes  - Pollution  - plants to die  - harmful substances  - tornadoes  - sleepiness  - lima beans  Now knowing that changes in the pH of soil can cause plants to die and sulfur lowers pH in soil, choose the best answer.
plants to die

You are presented with the question "What can increase the amount of nutrients in the soil?" and the following answer choices:  - roots  - wind  - worms  - Fungi  - Enzymes  - corn  - trees  - mussels  Now knowing that decomposition increases the amount of nutrients in the soil and bacteria and fungi are involved in the decomposition, choose the best answer.
Fungi

You are presented with the question "what can be added to a solid to decrease its freezing point?" and the following answer choices:  - oxygen  - ice  - an ion  - NaCl  - potash  - Acids  - sugar  - h2o  Now knowing that adding salt to a solid decreases the freezing point of that solid and for example, salt is NaCl, choose the best answer.

NaCl