What process marks the birth of a star?
a. a supernova explosion
b. when it begins combining hydrogen to form helium
c. when its mass expands and cools
d.when gravity pulls in nebular dust
Solved
Show answers
More tips
- G Goods and services How to Choose a Vacuum Cleaner That Will Suit You?...
- F Food and Cooking Discover the most delicious spaghetti with these tips...
- P Philosophy How did the concept of module arise in computer science?...
- F Food and Cooking How to Cook Julienne? Recipes and Tips...
- D Dating, Love, Relationships 10 Useful Tips on How to Survive a Breakup?...
- F Food and Cooking Apple Cider Vinegar: The Ultimate Health and Beauty Solution...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
Answers on questions: Biology
- B Biology Which of the following represents a resilience mechanism? Crown fires resulting from many years of fire suppression The emergence of a meadow in a recently burned forest Burned...
- B Biology Question 5 of 10 Pls Help This strangler fig tree is growing on another tree. It will eventually grow taller than the older tree and may kill it. Which resource are these two...
- B Biology What is a solution? a heterogeneous mixture in which one substance is dissolved into anothera homogeneous mixture in which one substance is dissolved into anothera mixture in...
- B Biology What is the complementary dna sequence to 5′ gtcagttcgta 3′?...
- B Biology What name is given to a substance that resists changes in ph?...
- B Biology What are the 2 stages of solidification, and what occurs during each?...
- B Biology The nurse is monitoring a client who is in the second stage of labor, at 2+ station, and anticipating birth within the hour. the client is now reporting the epidural has stopped...
- B Biology Often, caries will develop in an area of the tooth that s not readily accessible. which cavity preparation form defines this? a. retention b. resistance c. outline d. convenience...
- M Mathematics -3(x-14) + 9x = 6x + 42...
- M Mathematics 1/2x5/6, as a fraction, because my brain is not remembering rn...
Ответ:
a star is a light
Explanation:light is electric
Ответ:
To introduce nitrogen back into the soil you can plant crops that create their own nitrogen like soybeans and other legumes crops or use a chemical fertilizer with nitrogen in it. Crop rotation is also a eco effecieint way for farmers to reduce the risk of nitrate leaking onto the surface.
Explanation: