1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pochemuha
3 years ago
10

Why are some igneous rocks coarse and others are smooth

Geography
1 answer:
Ierofanga [76]3 years ago
6 0

The reason why some igneous rocks are smooth and some are coarse is the manner in which they formed. We can simply divide the igneous rocks into intrusive and extrusive ones.

The intrusive igneous rocks are formed deep into the ground. The magma that has formed this rocks has been exposed to higher temperatures and pressures. That has led to a very slow cooling off of the magma. Because the magma has been cooling off slowly, the crystals had time and the right conditions to grow larger, thus making the intrusive igneous rocks coarse.

The extrusive igneous rocks are formed on the surface. They have been formed by the lava that once it come out on the surface has been exposed to much lower temperatures and pressures. That has led to very quick cooling off of the lava. Because the lava has cooled off quickly, the crystals didn't had time to grow in size, thus they have remained very small, almost unnoticeable, thus making the extrusive igneous rocks smoother.

You might be interested in
What is the best season for it to snow?
STatiana [176]

Answer: winter

Explanation:

8 0
3 years ago
Read 2 more answers
Explain how Southern Ontario municipalities are adjusting to co-<br> existing with wildlife.
Anika [276]

Human-wildlife conflicts result when the actions of humans or wildlife have an adverse impact upon the other. Although it is recognized that humans have profoundly impacted wildlife and the environment in many ways, through habitat loss, pollution, introduction and spread of exotic and invasive species, over exploitation, and climate change, this document focuses mostly on those human-wildlife conflicts that result from direct interaction among humans and wildlife. Human-wildlife conflicts vary according to geography, land use patterns, human behaviour, and the habitat and behaviour of wildlife species or individual animals within the species. Principal areas of concern include:

Some wildlife species (g., deer, coyotes, Canada geese, raccoons, black bear) have an economic impact on local farming communities by damaging crops and livestock predation. The Agricultural Advisory Task Team (AATT) appointed in 2004 by the provincial Minister of Agriculture, Food, and Rural Affairs, identified issues of livestock predation and crop damage by wildlife in some regions of Ontario. The AATT recommended that human-wildlife conflict in agricultural areas be recognized and addressed by the provincial government. Human-wildlife conflicts in urban areas often involve wildlife species (g., raccoons, squirrels, Canada geese) that have adapted well to changes to natural habitat resulting from residential development. Impacts in residential areas include structural damage to buildings and landscaping and fouling of parks and recreation areas. Expansion of permanent residential and cottage development in rural areas of the province has also been accompanied by increased human-wildlife conflicts. Vehicle-wildlife collisions result in injury or mortality of both wildlife and humans, as well as substantial damage to motor vehicle Wildlife-plane collisions are also of concern at some airports and runways. The potential for disease transmission between wildlife and domestic animals or to humans is an ongoing concern. While major initiatives have limited the incidence and spread of rabies in Ontario, pathogens such as chronic wasting disease and avian influenza are receiving greater attention at provincial, national and international levels. Populations of some wildlife species can cause ecological impacts that are in conflict with objectives associated with conserving and maintaining biodiversity. For example, intensive foraging by white-tailed deer can alter ecological processes and physically impact habitat of species at risk. There is a need for better understanding and awareness of the nature and complexity of factors contributing to human-wildlife conflicts in Ontario, including climatic factors, land use, agricultural practices and wildlife management initiatives. Reduced winter severity associated with long-term climate change and shifts in agricultural land use practices in recent decades has created favorable environmental conditions for some wildlife species, such as white-tailed deer. There are currently underway enhanced government efforts to conserve and protect species and their habitat. In support of "sustainable development", there is recognition of the importance of the natural environmental in the lives of Ontarians. However, these efforts may have incidental consequences of increasing human- wildlife interactions, which need to be managed to maintain a healthy balance between the need for socio-economic development and protection of the natural environment. The number of people in southern Ontario has increased from 8.5 million in 1980 to 12.4 million in 2004. Future population growth will lead to increased urban and rural development and greater interaction with wildlife, particularly with those species able to adapt to human-induced habitat change.

If i'm wrong, sorry.

5 0
3 years ago
A block of ice has little thermal energy. If you place it in a warm room, it melts into warm liquid water, which has much
inna [77]

Answer:

The Energy did not appear. The energy of the particles increased while the ice was melting. The warmer the object is, the more energy the object has.

3 0
3 years ago
what IS the threat of GMOs. One major food chain has stopped selling GMO-related foods and there have been some criticisms of th
olga55 [171]

Answer:

GMOs refers to organisms that have had changes in their DNA using genetic engineering and the threat is to make ssure they are safe for people because if this genetic modifications.

Explanation:

GMO food is food produce from organisms that have been genetically modified and people is concerned about the dangers of eating this food. However, scientific data have said that it doesn't generate a risk to human health but every GMO food needs to be examine.

4 0
3 years ago
Studies have found that a person is most likely to be involved in a fatal crash with an impaired driver in the hours of?
Fofino [41]
Usually the hours between 11pm and 1am..
6 0
3 years ago
Other questions:
  • What happens before a black hole comes into existence?
    11·1 answer
  • The seismic waves that shake the ground in a vertical fashion are
    14·1 answer
  • On many cell phones with GPS, an approximate location can be given before the GPS signal is received. This is done by a process
    13·1 answer
  • Which organisms were alive when newyork state was last covrd by a continental ice sheet?
    13·1 answer
  • The four countries of Malay Peninsula are Japan Korea Taiwan and Hong Kong<br><br> True or false
    15·1 answer
  • How did the Edens Expressway affect the region, and how did the Northwest and East-West Tollways affect Oak Brook and Schaumburg
    10·1 answer
  • How could physical changes to Earth such as a meteor impact, an ice age, or global warming lead to physical changes in organisms
    12·1 answer
  • Which of the following does not affect ocean currents? A. Position of the continents B. Marine organisms C. Atmospheric temperat
    9·1 answer
  • Layer F is an igneous extrusion. How could a geologist use layer F to infer the age of layer A?
    13·1 answer
  • Distinguish between transport and communication​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!