That the oxygen levels in the test tube increased and carbon dioxide levels decreased because plants produce oxygen using carbon dioxide
Answer:
15% of the world does not have access to clean fresh water.
Explanation:
Air will move from hot area to colder area as the temperature at both lands should be equal.
Answer: Sexual reproduction
Explanation: Sexual reproduction, also known as meiosis, involves two organisms. Meiosis results in four haploid cells that are genetically different due to crossing over in prophase l, random fertilization, and the arrangements of chromosomes in metaphase l.
