Question: Fact 1: The looseness of soil has a positive impact on a plant 's roots' growth in that soil. Fact 2: Air exchange in the root zone is essential for root growth. Given the two facts above, what can enhance a plant's growth?
OPTIONS:
- sunlight
- tight soil
- Energy.
- loose soil
- Enzymes
- compacted roots
- energy
- compact soil
Answer: loose soil

Question: Fact 1: Ribosomes are small organelles where proteins are made. Fact 2: Ribosomes are assembled inside the nucleus. Given the two facts above, where are the small organelles that make protein get put together?
OPTIONS:
- Earth orbiting the Sun
- outside of the body
- epidermis and dermis
- the body's largest organ
- Veins and arteries.
- inside the nucleus
- in the lungs
- outside the nucleus
Answer: inside the nucleus

Question: Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants. Fact 2: Nitrogen deficiency increases the stress on the plants. Given the two facts above, what does bacteria in the soil help to prevent?
OPTIONS:
- contamination
- colder weather
- Pollution
- anemia
- plant stress
- Greenhouse gasses
- toxins
- disease
Answer:
plant stress