In this lesson, you have learned the following facts about caring of orchard seedlings in systematic and scientific ways. This includes the following:
1. Ways in watering the plants
2. Ways of cultivating the soil
3. Preparing and applying organic fertilizer​

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.

the correct answer is d

i believe this is true, if you're asking for whether its true or false. : )