All categories

3 years ago

A nebula is a gigantic cloud of dust and gas. True or False?

Geography

2 answers:

Elodia [21]3 years ago

8 0

Answer:

True

Explanation:

A nebula is a gigantic space cloud of dust and gas. Several nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a star that is dying, like a supernova. Other nebulae are giant celestial dust clouds where new stars are starting to form. Nebulae are made of dust and gas—mostly hydrogen and helium.

omeli [17]3 years ago

6 0

True because the definition of a Nebula is a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

You might be interested in

When Carla solved for the height from the ground to the point where the ladder

Westkost [7]

Answer:

<em>See explanation</em>

Explanation:

Given

Represent the vertical angle with $\theta$

$\theta = 75$

The question has incomplete details because the length of the ladder is not given; neither is the distance between the ladder and the wall given.

<em>See attachment for illustration</em>

So, this solution will be based on assumptions.

Represent

- The height from ground to the top of the ladder with y

- The length of the ladder with L

- The distance between the ladder and the wall with x

Carla could solve for y in any of the following ways:

1. Tan formula

$tan \theta = \frac{opp}{adj}$

In this case:

$tan \theta = \frac{x}{y}$

Multiply both sides by y

$y * tan \theta = \frac{x}{y} * y$

$y * tan \theta = x$

Divide both sides by tan

$y = \frac{x}{tan \theta}$

$y = \frac{x}{tan 75}$

This can be used if the distance (x) between the ladder and the wall is known.

Assume x = 15

$y = \frac{15}{tan 75}$

$y = 4.02$

2. Cosine formula

$cos \theta = \frac{adj}{hyp}$

In this case:

$cos \theta = \frac{y}{L}$

Multiply both sides by L

$L * cos \theta = \frac{y}{L} * L$

$Lcos \theta = y$

$y = Lcos \theta$

$y = Lcos75$

This can be used if the length (L) of the ladder is known.

Assume L = 15

$y = 15 * cos75$

$y = 3.88$

3 0

3 years ago

What lake had environmental concerns about location a paper pulp factory

kondaur [170]

Answer:

Lake Baikal's

Explanation:

Ecologists and NGOs in Russia have been trying to shut down the Baikalsk Pulp and Paper Mill, which is located on Lake Baikal's southeastern shore, since it opened in 1966. According to environmentalists: The plant produces bleached cellulose.

6 0

3 years ago

This map shows the ages of the Atlantic ocean crust .where is the youngest crust in the map ?

kodGreya [7K]

Answer:

Explanation:

4 0

3 years ago

Read 2 more answers

Pls help me with this question

svlad2 [7]

Answer:

From bottom to top - tropospher -> ozone layer -> stratosphere -> mesosphere -> thermosphere -> exoshpere

Explanation:

3 0

2 years ago

Why are the troposphere and the stratosphere important to human survival?

shutvik [7]

That's the one geography question I don't know! But what you can do is use a textbook or class notes if you have them or search online your question and you should find a a couple websites.
I hope this helps!

3 0

4 years ago