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VLD [36.1K]
3 years ago
11

Discuss the causes and effects of veld fire and suggest practical solutions

Biology
1 answer:
Nady [450]3 years ago
5 0

Answer:

In explanation.

Explanation:

Causes: most veld fires are a result of human actions that emanate from the disposal of cigarettes, the burning of vegetation when preparing fields, the use of fire by hunters, smoking out bees and the making of fires by motorists along highways.

Effects:  land management and sustainability posed by veld fires include property damage, reduced soil fertility, destruction of vegetation, air and water pollution, and destruction of wildlife.

Practical solutions:

1. Prepare fire breaks on their side if there is a reasonable risk of veld fires.

2. Have the necessary equipment, protective clothing, and trained personnel to extinguish these fires.

3. Avoid throwing cigarettes butts on the ground.

4. Have grass beaters handy to extinguish the fire.

5. Always have the emergency number handy to call emergency services 10177 on Telkom landlines or 112 on your cellphones.

6. Sand can be a very effective method of veld fire control since water will not be readily available.

7. Visit your nearest Basic Emergencies, Safety And Fire (Besafe) center for more information on fire safety education.

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How do the benefits of natural change to ecosystems compare to the disadvantages?
antiseptic1488 [7]

The correct answer is:

b.The benefits outweigh the disadvantages.

Explanation:

Natural changes to the ecosystem transfer to the environmental phenomenon that occurs naturally. Natural changes hold floods, volcanic activity, hurricanes, dehydration, and earthquakes. They can be deadly, but they also have benefits.The benefit of the flood is, for example, contributing nutrients to the soil that were wanting. Also, there may be the relocation of fishes and organisms existing in water bodies, which develops the ecosystem.

5 0
3 years ago
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You place an inoculum of your bacterium on a glass slide and add a drop of hydrogen peroxide reagent. Promptly you see bubbles a
marissa [1.9K]

Answer:

The correct answer is A) Biochemical test

Explanation:

In microbiology biochemical test is used to examine the metabolic activities performed by bacteria to identify that microorganism. So in biochemical test enzymatic reaction of cell is usually investigated because there is difference in enzymatic activity of different species of bacteria.

For example, catalase test that is used to differentiate between catalase-positive and catalase-negative bacteria is an example of biochemical test. Catalase-positive bacteria have the catalase enzyme that breaks hydrogen peroxide into water and oxygen which is confirmed by bubbles that appear on glass slide.

Catalase negative bacteria do not form bubbles when they are put in hydrogen peroxide which shows that they lack catalase enzyme. So the right answer is A.

5 0
3 years ago
A structure in the leg of a human is found to carry oxygen-rich red blood cells. What else is most likely true about this struct
Gwar [14]
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this part cant be part of the respiratory system as the respiratory system includes lungs, mouth and etc but not the legs so it cant be D

hope that helps
8 0
3 years ago
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or each of the following genetic topics, indicate whether it focuses on transmission genetics, molecular genetics, genomics or p
Bad White [126]

Answer:

A. transmission genetics

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C. molecular genetics

D. genomics

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Transmission genetics can be defined as the study of the mechanisms involved in the inheritance of genetic material by offspring from parents. This discipline started with the discovery of inherited characteristics in pea plants by Mendel (1865).

Population genetics is a subdiscipline of genetics that studies genetic variation within and between populations. Population genetics is an area that explains how allele and genotypic frequencies change across time, thereby this subdiscipline is closely linked to evolutionary biology.

Genomics is a broad area of genetics that studies the function, evolution, structure, function, mapping and comparison of genomes (i.e., the whole genetic material contained in each cell of a given organism). This discipline aims at understanding entire gene pools. Genomics includes different research areas including structural genomics, functional genomics, epigenomics and metagenomics.

Molecular genetics is a sub-discipline of genetics that studies the mechanisms involved in preserving the genetic material (i.e., DNA and RNA), and to understand how the structure and expression of the genetic material influence the observed variation among organisms.

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Ierofanga [76]

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