Toxic substance is a substance that can be poisonous or cause health effects. People are generally concerned about chemicals
Answer: Option B (True)
Explanation: The statement can only occur in different populations of the same organism. The two growth strategies happens in different modes.
Firstly, logistic growth occurs when the resources available in the habitat (i.e organism’s niche) are limited to satisfy the whole population and this allows the organisms of the same species to grow rapidly until it reaches the point the resources can circulate, the carrying capacity.
While exponential growth occurs when there's abundance of resources for the population and allows growth of population beyond the carrying capacity, which results to overshoot of population in later stage of growth.
Secondly, in logistic growth population rarely crash but in exponential growth, population crashes due to mortality (often by predation, disease outbreak and etc) when there's overshoot of population beyond the carrying capacity.
Note: Population refers to the total number of organisms of the same species inhabiting a geographical area at a particular time.
C, if you look at a water wheel, water flows on the wheel, turning a rod, powering something on the inside. Dams do the same thing except the rod goes into a transformer and is more complicated.
He is right, it’s A. loss of Biodiversity.
Organic farming methods enable farmers and gardeners to prepare soil in such a way that nitrogen is added naturally through nitrogen-fixing bacteria rather than nitrogen having to be added through a synthetic fertilizer. This method of growing crops saves farmers money and alleviates the problems associated with fertilizer runoff
Farmers and gardeners should use other methods to provide crops with the nitrogen they need.
Algal blooms are due to the accumulation of algae, generally Cynabobacteria and Dinoflagellates, that grow due to excess nutrients in water.
If good algae grow, they do not accumulate in the waterbodies.
Diatom Algae are good algae.
Therefore if Diatoms are grown instead of Cyanobacteria and Dinoflagellates, there would be no accumulation and no problem of algal blooms.
