1. what is ecosystem?
2.what is erosion?
3.how do earth quake cause?
4. poeple who make maps are known as?
5.who is the first Traver into space?
6.who is the first Traver into moon?
Answers
Explanation:
1) a biological community of interacting organisms and their physical environment.
"the marine ecosystem of the northern Gulf had suffered irreparable damage
2) the process of eroding or being eroded by wind, water, or other natural agents.
"the problem of soil erosion
3) An earthquake is caused by a sudden slip on a fault. ... When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. In California there are two plates - the Pacific Plate and the North American Plate
4) a person who makes maps; cartographer.
5) cosmonaut Yuri Gagarin
6) Neil Armstrong
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