Answer:
Air particles are a mixture of solids and liquids that are microscopically tiny and suspended by air currents. It can stay in the atmosphere for a few hours to a month or two. Their constituents can be various harmful substances such as heavy metals - lead, nickel, arsenic, cadmium or polycyclic aromatic hydrocarbons
Explanation:
Air particles, nitrogen dioxide and ground-level ozone are now considered to be the three most polluting substances in human health. Exposure during peak concentration and long-term exposure to these pollutants can cause damage from respiratory distress to premature death.
If this is true or false than it is FALSE
Humans get energy indirectly from the sun, but directly through plants. plants get energy from the sun through photosynthesis, and we eat the plants.
Answer:
Producers are at the bottom of every food chain.
Explanation:
Without producers, the primary and secondary consumers will be affected, as the primary consumer only feeds on producers such as leaves and grass. The producers gain energy from the sun to make food through the process of photosynthesis, and the sun is a infinite resource, thus ensuring that the primary consumers will have enough food to feed and reproduce.
