22. C
23. C
24. A
25. B
26. D
27. C
28. C
D
Because most air pollution is caused by the burning of fossil fuels burned in the home
Answer:
ovum fusing with sperm will give zygote (fertilization)
The zygote later on develops to an embryo in the womb after implantation.
Answer:
The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.
Explanation:
*- The capillaries of the limbus nourish the peripheral part of the cornea.
*- Tears supply of glucose in the tear film
*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer
