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enot [183]
3 years ago
8

According to modern scientific theory, which of the following organisms appeared first?

Biology
1 answer:
aleksklad [387]3 years ago
6 0
Do you have any choice answers?  As far as I know, the organisms that appeared first was micro-organisms.  Hope this helps.
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the data collected over the years clearly confirm depletion of ozone in the stratosphere. what do scientists still need to learn
Lisa [10]

<span>Ozone is simply a molecule consisting of 3 oxygen atoms, which reacts strongly with other molecules. Ozone is created in the stratosphere when high energy uv radiation causes on O2 molecule to split. The free oxygen atoms collide and react with other O2 molecules to form O3.</span>

Production is highest where the solar uv is the greatest eg near the tropics, but once created, the ozone is then circulated towards the poles by the atmosphere. The amount of ozone in the stratosphere can vary with location, season and even day to day climatic conditions.

<span>The process of ozone creation is what makes the O3 in the atmosphere very effective at shielding the Earth from harmful uv radiation, which can cause many biological problems, such as skin cancer. However, due to its high reactivity, the uv found in the tropospher at ground level can aslo be dangerous as a toxic pollutant which is harmful to plants and lung tissue, and is a major cause of smog.</span>

5 0
3 years ago
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6. (a) What two major changes have occurred in the North Fork Toutle River?
antiseptic1488 [7]

A massive landslide Mud flows in the Toutle river.

<h3>How changes have occurred in the North Fork Toutle River?</h3>

There had been many earthquakes in the area prior to eruption but this happen to be a massive land slide because a moving magma have over steepened the mountain slopes.

This geologic process uses gravity to cause rock, soil, artificial fill or a combination of the three to move down a slope. Slow weathering of rocks as well as soil eruption and volcanic activity also causes landslides

Thus, massive landslide Mud flows in the Toutle river.

To learn more about North Fork Toutle River click here:

brainly.com/question/14287829

#SPJ1

6 0
1 year ago
Carbon dioxide in the atmosphere traps heat. scientists are concerned that too much carbon dioxide is being released into the ai
Dovator [93]
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement
6 0
3 years ago
5. In the following chemical equation, ____ and ____ are
Katarina [22]

Answer:

reactants: carbon dioxide & water . products: glucose & oxygen

Explanation:

this is the chemical equation for photosynthesis

8 0
2 years ago
Janelle was telling her mom about a dream where she was being chased by wolves. She said she ran and ran and when she woke up, h
Lesechka [4]

Answer:

The thyroid.

Explanation:

This controls your adrenaline.

Brainliest?

9 0
2 years ago
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