9.organ system, 10. organ level I guess.
The answer is b. False.
Smog is named for the mixture of smoke and fog. It is an air pollutant. It is able to affect human health and environment, as well. Smog affects plant by inhibiting photosynthesis which leads to reduced growth, reproduction, and survival of the plants. It can make them more susceptible to disease or to cause drying out.
Command economy can be define as an economy in which production, investment, prices, and incomes are determined by a government.Central government is responsible for all this.No other authorities are allowed to fix any of the above mentioned categories.
<span>All goods and services production is set through the central plan.</span>
thousands of years
Explanation:
A delta the size of the Mississippi River will take several thousand of years to form because the process of formation of a delta is geologically controlled.
A delta is a place where river enters or drains into the sea with many mouth or outlets.
Deltas are depositional terrain full of dis-tributaries.
- For a delta to form, a terrain must be close to the mouth of an ocean or a larger body of water.
- The entering stream must be large enough and have large amount of sediment.
- The river mouth must have been cut to the same level with that of the drainage basin.
- Most rivers such terrain should be at their lower course where they flow with very low velocity.
- Wave action should be minimal along such coasts.
These processes takes several thousands of years if not millions.
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