Answer:
1st para. Cause and effect.
2nd para. Compare and contrast.
3rd para. Definnoson
4th para. classification
At room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas, whereas ionic compounds exist only as solids, Ionic compounds exist in stable crystalline structures. Therefore, they have higher melting and boiling points compared to covalent compounds.
Diatoms have cell walls composed of silicon dioxide.
A. silicon dioxide.
During the examination of a patient suffering with a lung or respiratory disease, a nurse is expected to hear different types of sounds coming from different parts of the lungs. The sound can be crackled, broken, high-pitched, medium-pitched, etc.
A nurse is expected to hear a bronchovesicular lung sound NEAR THE STERNAL BORDER in a healthy adult.
Answer:
Declining crude birth rates.
Explanation:
Birth rate may be defined as the number of births takes place per year per thousand of the population. The birth rate and death rate may change the population dynamics.
The developing countries shows the expanding population graph as they have more number of people of the reproductive age. The advancement in the medical field results in the decline birth rate that causes the decline of the nature resources.
Thus, the answer is declining crude birth rates.
