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7nadin3 [17]
3 years ago
12

Many gardeners use a chemical weed-killer to control plant pests in their gardens. However, many weeds have begun to develop a r

esistance to these chemical poisons.
This is an example of _________________ in action.
A) hybridization
B) natural selection
C) polynuclueization
D) chemical selection
Geography
2 answers:
Shtirlitz [24]3 years ago
4 0
B. natural selection is the answer
12345 [234]3 years ago
4 0

Answer:

B:Natural Selection

Explanation:

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Why is the Far East considered as a land of contrasts and "untouched" resources? Explain.(please post at least 100 words)
mojhsa [17]

Answer:

Far east is geographical term that refers to east asia including north east asia. Being rich in cultural and geographic realms of these countries have

Explanation:

  • Far east land is a land of the rising sun the Japanese coast and along with the eastern Siberia and Indonesian islands these lands belong to the variety of biodiverse resources in the world.
  • Plus they have long traced the history of natural resources and abundance and most of these are untraced or undiscovered by man. For example the marina trench its proper depth still unknown to man.
  • Parts of Russia and China and other nearby states have an untouched resource found in underwater reserves that harbor exotic species and possible changes of fresh marine life forms making far east as most of the valuable resource on earth.
5 0
3 years ago
Which observation about the Mid-Atlantic Ridge region provides the best evidence that the seafloor has been spreading for millio
SSSSS [86.1K]

Answer:

D. Seafloor bedrock is younger near the ridge and older farther away.

Explanation:

In a divergence boundary oceanic plates or continental plates move apart. The plates moves apart causing an uprising of molten magma to form a new crust. The divergent movement of plate is very prevalent in the oceanic plates.

The plates in the oceanic crust moves apart due to the up welling of aesthenosphere materials . These aesthenosphere materials(molten magma) are introduce to the ocean floor through the mid oceanic ridge . As this materials are introduced through cracks and fissures, the plates continue to drift apart. The molten magma later solidified to form a new crust closer to the oceanic ridge.  This is why sea floor bedrock closer to the ridge is younger as new rocks are formed here. But as one move farther away from the ridge the rocks become older. This phenomenon provide ample evidence that the seafloor is spreading. The older rocks found father away from the ridge proves the seafloor has been spreading given way for new rocks closer to the ridge.  

7 0
3 years ago
Explain the differences between the inner core and the outer core
son4ous [18]
The outer core is more thinner than the inner core. outer core is also more rocky in material.
6 0
3 years ago
Identify and describe the environmental impact of development on the amazon basin.​
Nadya [2.5K]

The Amazon Basin is located in brazil. For centuries, this has protected the area, people, and the animals residing in it. Forest recession has occurred in the past 30 years due to increased industry and population growth through road projects, settlement initiatives, and industrial development.

The Amazon Basin includes a diversity of traditional inhabitants as well as biodiversity in both flora and fauna. These peoples have lived in the rain forest for thousands of years, and their lifestyles and cultures are well-adapted to this environment. Contrary to popular belief, their subsistence living methods do not significantly harm the environment. In the past few decades, the real threat to the Amazon Basin has been deforestation, poaching, and cattle ranching by transnational corporations.

Oil and gas development often also takes a heavy toll on the environment and local people; especially in rainforest areas where it can cause displacement of local people, air and water pollution, and construction of roads that open previously inaccessible areas to deforestation.

That said, even a new NASA study shows that over the last 20 years, the atmosphere above the Amazon Basin has been drying out, increasing the demand for water and leaving ecosystems vulnerable to fires and drought. It also shows that this increase in dryness is primarily the result of human activities.

Summary: all impacts caused by human development in the Amazon Basin is causing the atmosphere to go bad, the crops and indigenous plants to die at alarming rates, the water to be polluted, and the animals and humans who are indigenous of the area suffer the consequences.

 

3 0
3 years ago
Describe the three kinds of plate boundaries.
Darya [45]
There's three types of plate boundaries:
- Collision plate boundaries (where two or more plates of the same density collide )
- Adjacent plate boundaries (where two or more plates slide against each other)
- Subduction plate boundaries  (where one or more plates with lesser density are subducting below the the plate that has bigger density).
6 0
4 years ago
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