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3 years ago

3. Why is relying on a short list of major food crops a concern?

Biology

1 answer:

jeka57 [31]3 years ago

5 0

Relying on a short list of major food crops is a concern.

<u>Explanation:</u>

Different food crops require different types of soil. Thus all kinds of food crops cannot be cultivated in the soil of a country. In addition to that the amount of land available for cultivation is limited by growing settlements and industries.

Thus growing reliance on limited number of food crops is a serious issue. When all the people start depending on a few type of major food crops the production from agriculture won’t be able to feed all the population. The increase in demand for major food crops will result in the increase in their prices.

This would mean that only the wealthy would be able to afford them. This will eventually lead to poverty and decline in economic growth.

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List 3 factors that can speed up the rate of chemical reactions

zysi [14]

Answer:

Temperature
Greater Surface Area
Catalysts

Explanation:

Temperature

An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (Figure. 17.5 “Temperature and Reaction Rate”).

Greater Surface Area

The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. ... more particles are exposed to the other reactant. there are more collisions. the rate of reaction increases.

Catalysts

A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

Hope this help!!!

7 0

2 years ago

Read 2 more answers

A mutation near the middle of a gene changes the DNA to the following nucleotides: ATT. What

True [87]

Answer:

A mutation near the middle of a gene changes the DNA to the following nucleotides: ATT. What kind of mutation occurred in this situation?

missense mutation

Explanation:

3 0

3 years ago

Why are emotional memories retained better than memories of humdrum experiences? Select an answer and submit. For keyboard navig

olya-2409 [2.1K]

Answer:

The correct answer is : option A. emotional arousal in the amygdala activates memory consolidation in the hippocampus.

Explanation:

Hippocampus is the part of the brain known for the consolidation of the memories to short time to long term memories based on their emotional relevance.

Amygdala is the part of the brain that is responsible for emotional arousal or forming emotion which is later activates the hippocampus to consolidate this memory. Memory with the emotional aspects retained for long term than boring or humdrum experiences due to the reason mentioned above.

5 0

3 years ago

Los derechos sexuales son iguales a los reproductivos? porfa help

alexandr1967 [171]

El teme son up poco differente porque hay differentes lados

4 0

2 years ago

Your son has not had the MMR vaccine (measles, mumps, rubella) because you are apprehensive about vaccines and their side effect

natali 33 [55]

Answer:E.

Explanation:The MMR mostly affects children and if not administered vaccine in time to save a respond that prevent subsequent reoccurence of infection, it will lead to severity of infection (secondary infection ) probably if resurfaced at adult stage.

7 0

3 years ago