Why was sputnik important?

1. How does coal create a negative impact to the environment? mining for coal destroys ecosystems. coal causes an increase in water pollution. mining for coal causes animals to become extinct. coal causes an increase in carbon dioxide in the air. 2.

The water cycle is a biochemical cycle that is a closed system

During the Paleozoic Era there was explosion of life in the oceans. Most of the continents were covered in warm, shallow seas. What is true about life on Earth at this time?

Can people change the world for the better

What is used to provide nutrients to growing plants

What is the importance of the excretory system?

What are four sources of minerals?

How many organisms depend on the squid as a source of food?

A slow persistent mass movement of surface soil is called

Explain true or false. unlike planets and dwarf planet cannot have moons