The answer is B. Vascular plants and invertebrates appeared during this time.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
<span>Several factors contribute to positive population growth as outlined below. All of these also revolve around improvement of child mortality rate in comparison to previous years.
1. Improvement of health and treatment standards - healthcare
2. Improved food production in terms of quantity and quality.
3. Technological advancement in healing and treatment of preexisting diseases and health conditions</span>
