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slamgirl [31]
2 years ago
7

Why might a company decide against using hydroelectric Energy as an alternative energy source

Biology
1 answer:
Ira Lisetskai [31]2 years ago
8 0

C

Explanation:

I think it's c if not then d

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Some plants have stems called
inna [77]

Answer:

Runners

Explanation:

stems are usually upright and prop up the plant to gather sunlight, however, some stems grow along the ground. These stems are called runners and the plant itself is called a stolon. Runners are involved in asexual reproduction of plants. They have nodes along them which can grow into another plant.

8 0
3 years ago
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Not b so what is it
olasank [31]

Answer: d

Explanation:

7 0
3 years ago
A chronic bone disease that is characterized by the abnormal breakdown of bone followed by abnormal bone formation is known as
Sidana [21]

Answer:

Paget's disease

Explanation:

  • When cellular deforming and remodelling of many bones takes place and this occurs as a chronic condition then this is known as Paget's disease.
  • There is excessive breakdown of bone as well as disorganised formation of new bones.
  • Such problem leads to weakening of the bone due to which complications such as deformity, fracture and arthritis occurs.
  • The disease does not spread from one bone to another and the entire skeleton is not affected in such a disease, it only affect few or more bones.
  • There is currently no known cure for the disease.
4 0
2 years ago
1. Describe DDT and summarize the history of the use and banning of DDT, including actions taken by the U.S. government. State t
igomit [66]

DDT stands for  dichloro-diphenyl-trichloroethane. The first kind of synthetic/artificial insecticides came into use in the 1940s. The earlier usage of DDT include:  a) Killing of malarial vectors, b) Combatting Typhus and other insect borne human diseases, c) As a pest control in crops d) as a pest control in garden, live stock production and even at homes.  

The negative impact of DDT could be felt for the first time when the pests that were earlier killed by use of DDT have now become pesticides resistant. In the 1950s in USA, the regulatory measures were adopted to reduce the usage of DDTs as its effects as a pesticides were no more long significant and also it was creating detrimental physical and psychological impacts on the human and environment.

It was in 1972 that the U.S. Environmental Protection Agency cancelled the order for banning the usage of DDT based on the adverse impact it produced on the environment, human and other life forms. Since then continuous studies are being conducted to analyse the impact of DDTs. In some later years it was established that DDT is the cause of producing tumors in liver.  

Some of the common negative impacts produced by DDT as per the U.S. Department of Agriculture :  

a) The non destructive nature – DDT can not be destroyed and thus it remains persistent in the atmosphere

b) It attacks the tissues of living organisms especially the animals and humans  ( fatty tissue)

c) It can penetrate the atmosphere to deeper extent.

Now as per the current stuation, The use of DDT is controlled and other alternatives of pest control organisms is being deduced. As per the treaty of Stockholm Convention on POPs (Persistent organic pollutants) , usage of DDT for malarial control is justified but it puts a restrictive use of DDT as pesticides in other areas.  

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3 years ago
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Describe the pros and cons of genetic engineering to modify food and in-vitro fertilization
pshichka [43]
<span>Answer: Pros: -Resistance to disease; -Cost; -Quality; -Taste: -Nutritional content: Cons: -Allergens and toxins; -Antibiotic resistance; -New diseases; -Nutritional content; -Loss of biodiversity.</span>
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