Answer:
its b
Explanation:
auxiliary verbs - "verb used in forming the tenses, moods, and voices of other verbs."
Answer:
No
Explanation:
A person does not have to directly challenge someone or an authority figure to be considered a hero. A lot of people are heros by helping in the background. For example, someone could be considered heroic for picking up trash, giving to charity, saving an animal or person in need, volunteering to help businesses, etc. Though you may not be considered a hero like in the comic books there are many things an average human can do to be heroic without directly involving themselves in conflict.
the authors purpose is to inform readers, so therefore it needs to be understandable and clear how to do what the reader went to the source to learn how to do, so, A would be the answer.
hope this helps!
Answer:
The Sahara desert is one of the harshest, most inhospitable places on the planet, covering much of North Africa in some 3.6 million square miles of rock and windswept dunes. But it wasn't always so desolate and parched. Primitive rock paintings and fossils excavated from the region suggest that the Sahara was once a relatively verdant oasis, where human settlements and a diversity of plants and animals thrived.
Now researchers at MIT have analyzed dust deposited off the coast of west Africa over the last 240,000 years, and found that the Sahara, and North Africa in general, has swung between wet and dry climates every 20,000 years. They say that this climatic pendulum is mainly driven by changes to the Earth's axis as the planet orbits the sun, which in turn affect the distribution of sunlight between seasons—every 20,000 years, the Earth swings from more sunlight in summer to less, and back again.
Explanation:
not really sure but hope this helps
