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GuDViN [60]
3 years ago
14

Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work afte

r he returned home from his voyage and studying the selective breeding of pigeons prompted him to ask which question?
Biology
1 answer:
Ronch [10]3 years ago
6 0

Answer:

How are traits passed on from one generation to the next?

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Which of the following adaptions allowed plants to transport water and nutrients from the soil to all of the cells within the pl
Ksenya-84 [330]

Answer:

c

Explanation:

I took the test

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What have the scientific studies identified as the major cause of acid rain in the united states?.
Vadim26 [7]

Burning of fossil fuels that release sulphur and nitrogen compounds into the air is identified as the major cause of acid rain in the united states.

<h3>What are the causes of acid rain?</h3>
  • Acid Rain is created when sulphate and nitrogen oxides from the atmosphere react with rainwater and fall as a result.
  • Sulphur and nitrogen particles that mix with the wet elements of rain are the main causes in the production of acid rain.
  • Due to air pollutants, notably the excessive levels of sulphur and nitrogen released by machinery and industrial operations, acid rain is made up of water droplets that are extremely acidic.
  • The emissions that are released from industries are man-made causes.
  • The natural causes, such as lightning strikes in the atmosphere that release nitrogen oxides and volcanic eruptions that release sulphur oxide.

The complete question is :

What have the scientific studies identified as the major cause of acid rain in the United States?

a )chemicals still in the atmosphere from the asteroid collision with the earth

b) excess solar radiation due to the depletion of the ozone layer

c) volcanic ash in the air

d) burning of fossil fuels that release sulphur and nitrogen compounds into the air

To learn more about acid rain , refer:

brainly.com/question/6700006

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3 0
1 year ago
Help Please ~ 20 points
max2010maxim [7]

Nitrogen fixation is the process where atmospheric nitrogen is converted by bacteria into biologically usable forms.

plant can not take nitrogen directly from the leaves.

6 0
3 years ago
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Coral habitat is diminishing world-wide at an alarming rate. From what you know about sponges, cnidarians and Ctenophores, why i
Katyanochek1 [597]

Destruction of coral reefs would cause an imbalance in the ecosystem. Some species could be driven to extinction.  

Coral reefs are the base of the most diverse marine ecosystem in the world. They are often referred to as the ‘rainforest’ of the oceans and seas.  They provide shelter for cnidarians, sponges, crustaceans, and etcetera and provide hiding grounds from predators.

5 0
3 years ago
Which statement is true about the layers of the Earth? * 1 as temperature and pressure increases, density increases 2 As tempera
nignag [31]

Answer:

1. As temperature and pressure increases, density increases

Explanation:

The earth is composed of three main layers: Crust, Mantle and Core. The density or mass per unit volume of the earth's layers increases as one moves from the surface towards the interior of the earth known as the core. Also, there is an increase in pressure and temperature as depth increases. There are three main sources of heat in the earth's core: (1) conserved heat from when the planet formed and coalesced, (2) heat due to friction caused by denser core material sinking to the center of the planet, and (3) heat from the decay of radioactive elements.

The earth's core is composed almost entirely of the metals, iron and nickel. The core has an inner solid layer and a molten outer core. Iron and nickel are both very dense metals, so the core of the earth is very dense and the density increases with depth with the inner core being the most dense layer of the earth.

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3 years ago
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