Question

What are the names of the planets in order from the Sun outward?

What caused this difference to occur?

What was the Earth like when it first formed?

How is it different today?

What are the three main layers of the Earth based on chemical composition?

What are the five layers of the Earth based on physical characteristics?

How did these layers originally form?

What are the two most voluminous element is the Earth’s crust?

What are the two kinds of crust? What is the igneous rock that makes up each layer called?

What is the main difference between them, that makes them act so differently?

What was the basic composition of the early atmosphere?

What had to change in the atmosphere before life could evolve?

What were the first organisms’ food come from?

What type of organisms make most of the food for the basis of the food chain today?

What is the basic history of organisms’ evolution on Earth?

What is the study of geology?

How is environmental geology defined?

Why study environmental geology?

What is carrying capacity?

Who is the population on Earth effected by environmental geology?

Define:

Scientific method

Hypothesis

Theory

What are some of the environmental issues influenced by population growth?

Answer 1

SOLUTION:-

** In our solar system , 8 planets are there and Pluto was rejected by the scientists.

Mercury - venus - Earth- Mars- Jupiter - Saturn - Uranus - Neptune.

** The solar system is divided in two phase :- inner planets and outer planets.

Inner planets:- Mercury, Venus, Earth, Mars.

Outer planets:- Jupiter, Saturn, Uranus and Neptune.

The main reason to occur in different positions is the inner materials of the planets. After formation of the sun into the center of the nebula , the solar wind throw the lighter gas elements like hydrogen and helium and created outer planets. On the other hand heavy Rocky materials stayed closer to the sun and formed inner planets.

**Inner planets like Mercury, Venus and earth and Mars are formed by heavy Rocky materials that's why they stayed closer to the sun. Inner planets are also known as the terrestrial planets.

** Outer planets like Jupiter and Saturn are the big gas giant formed by hydrogen and helium. That's why they exist in the outer planets.

Uranus and Neptune are made of hydrogen and helium and also methane ice and water. Rock material is not present enough into these planets. These planets are called icy planets. That's why they are present in most outer side.