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
dolphi86 [110]
3 years ago
14

why do some scientists theorize that global warming might not be the result of increases in atmospheric carbon dioxide

Biology
1 answer:
PtichkaEL [24]3 years ago
8 0

Explanation:

In Earth’s history before the Industrial Revolution, Earth’s climate changed due to natural causes not related to human activity. Most often, global climate has changed because of variations in sunlight. Tiny wobbles in Earth’s orbit altered when and where sunlight falls on Earth’s surface. Variations in the Sun itself have alternately increased and decreased the amount of solar energy reaching Earth. Volcanic eruptions have generated particles that reflect sunlight, brightening the planet and cooling the climate. Volcanic activity has also, in the deep past, increased greenhouse gases over millions of years, contributing to episodes of global warming

You might be interested in
In some plants, phloem cells are connected end-to-end by sieve plates, creating a direct connection between the cytoplasm of phl
ella [17]

Answer:

Explanation:

This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.

6 0
3 years ago
To aid inhalation, both the diaphragm and intercostal muscles are used. By expanding the thoracic cavity, the action of these mu
Naddika [18.5K]

Answer: lower atmospheric pressure

Explanation:

During the inspiration process the diaphragm, and external intercostal muscles. The contraction of the diaphragm causes the increase in the size of the thoracic cavity this causes the contraction of the external intercostal muscles. As a result of this the ribs and the sternum get elevated.  

This causes the lungs to expand, and increasing the volume of the air passage. In this response the air pressure inside the lungs reduces below the air outside the body. Thus this facilitates the movement of the gases from a region of high pressure to low pressure, this way the air rushes into the lungs.

5 0
3 years ago
What concept developed by Malthus influenced Darwin? A. the principle of scarce resources B. the principle of natural selection
satela [25.4K]

the princpal of natural selection

8 0
3 years ago
A student wants to test the hypothesis that plants need soil to grow. Identify the independent
bija089 [108]

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

7 0
3 years ago
Which of the following is an example of a renewable resource?
Vika [28.1K]

A renewable resource is a resource that can be renewed/or replinished meaning the Sustainably Harvested seafood must be your answer. Natural gas takes too long to replenish so it is considered non-renewable. You can bring back sand once it's gone nor Methane Hydrates.


Sustainably harvested seafood


hope this helped

4 0
3 years ago
Other questions:
  • Land breeze and sea breeze keep coastal climate moderate throughout the year. Which of these causes land and sea breezes to blow
    12·2 answers
  • Which statement best explains how crossing over increases the genetic diversity of sexually reproducing organisms?
    12·1 answer
  • during mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell so that each of the d
    7·1 answer
  • Phytoplanktons are the main producers of the aquatic system. These microscopic plants use the carbon dioxide in the ocean to pro
    12·2 answers
  • Divide 51 by the sum of-8and-9 I want correct answer with explanations ​
    12·1 answer
  • Which correctly lists the three parts of soil that are classified by their particle size? bedrock, humus, and clay clay, bedrock
    15·2 answers
  • What are some interesting facts about the rough er??
    14·1 answer
  • An ELISA test can be used to look for a particular infection in a patient in 2 ways: an antigen 1 point
    7·1 answer
  • Plz help more bio multiple choice!
    11·1 answer
  • 2. Can two people with Type A blood have a child with Type O blood? Explain.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!