What environmental reason is responsible for an observed decrease?

What environmental reason is responsible for an observed decrease of maple syrup in the Northeast United States?

What environmental reason is responsible for an observed decrease of maple syrup in the Northeast United States? Temperature increase.

What would be evidence for lower or decrease in temperature affecting plant species in a mountainous region?

What would be evidence for lower or decrease in temperature effecting plant species in a mountainous region? Migration of plant species to a higher elevation.

What would be evidence for increased temperature affecting plant species in a mountainous region?

what would be evidence for increased temperature affecting plant species in a mountainous region? migration of plant spices to a higher elevation.

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What are the main contributors to climate change?

Since 1970, CO2 emissions have increased by about 90%, with emissions from fossil fuel combustion and industrial processes contributing about 78% of the total greenhouse gas emissions increase from 1970 to 2011. Agriculture, deforestation, and other land-use changes have been the second-largest contributors.

What is the greenhouse effect?

What Is the Greenhouse Effect? Identified by scientists as far back as 1896, the greenhouse effect is the natural warming of the earth that results when gases in the atmosphere trap heat from the sun that would otherwise escape into space.

What process uses up carbon dioxide in the environment?

Photosynthesis, the biochemical process by which plants and some microbes create food, uses up carbon dioxide. Photosynthetic organisms combine CO2 and water (H2O) to produce carbohydrates (such as sugars) and emit oxygen as a by-product.

How does climate affect the distribution of plants?

Climate controls the distribution of many plants (1, 2). Future changes in climate are projected to cause changes in vegetation distribution (3). … Studies of plant phenology have attributed longer growing seasons, earlier onset of flowering, and earlier harvest to climate warming (5, 6).

How does climate change affect where plants are distributed?

As water supply is critical for plant growth, it plays a key role in determining the distribution of plants. Changes in precipitation are predicted to be less consistent than for temperature and more variable between regions, with predictions for some areas to become much wetter, and some much drier.

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How will global climate change impact plants that strictly respond to their environment through Photoperiodism explain?

How will global climate change impact plants that strictly respond to their environment through photoperiodism? In general, global climate change does not alter the availability of sun. … Phototropism is a behavioral response that many plants have to light. In the presence of light, plants bend towards the light source.

How does climate change decrease elevation?

As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands), and the temperature decreases. … The temperature in the troposphere — the lowest layer of the earth’s atmosphere — generally decreases with altitude.

Why might a species move up a mountain as temperatures rise?

Based on their predictions, they found that species tend to move to higher elevations, and that these higher elevations tend to have more intact land for species because there is less human pressure. … “Species are adapted to certain temperature conditions.

Why would plants move to lower elevations?

A closer look revealed that the downhill movement of plants was likely driven by the changes in precipitation that accompanied warming temperatures. Those regions that experienced less rain and snow at high elevations were those with plants shifting toward lower elevations with wetter climates.

Which of the following environmental problems causes climate change?

Carbon dioxide is the main cause of human-induced global warming and associated climate change. It is a very long-lived gas, which means carbon dioxide builds up in the atmosphere with ongoing human emissions and remains in the atmosphere for centuries.

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What contributes to carbon footprint?

The major contributors to carbon footprints are: food, consumption, transportation, and household energy. Food is a major contributor to carbon footprints, and meat in particular is an issue. Livestock is responsible for a significant amount of greenhouse gas emissions, and beef is one of the biggest contributors.

What causes the most pollution?

Most of the air pollution takes place due to the burning of fossil fuels such as coal, oil, gasoline to produce energy for electricity or transportation. The release of carbon monoxide in high level indicates how much fossil fuel is burned. This also emits other toxic pollutants in the air.