Why do astronomers narrow their search to the “habitable zone” of other star systems?​

  ​Match the term to its description or definition. ENTER THE LETTER ONLY a. Kirkwood gaps f. carbonaceous chondrites b. Apollo-Armor objects g. Trojan asteroids c. Oort cloud h. Centaurs d. achondrites i. Chicxulub e. coma j. CAIs     sections of asteroid belt orbits that are nearly preoccupied caused by orbital resonances with Jupiter​

What eventually happens to a comet when its orbit brings it into the inner Solar System?​

_______________ are fossilized remains of colonies of single-celled organisms that built uplayer after layer of trapped sediments.​

Which describes the direct change in genetic information of a cell?​

  ​Match the term to its description or definition. ENTER THE LETTER ONLY a. Kirkwood gaps f. carbonaceous chondrites b. Apollo-Armor objects g. Trojan asteroids c. Oort cloud h. Centaurs d. achondrites i. Chicxulub e. coma j. CAIs     ​the head of a comet

​Match the term to its description or definition. ENTER THE LETTER ONLY a. Kirkwood gaps f. carbonaceous chondrites b. Apollo-Armor objects g. Trojan asteroids c. Oort cloud h. Centaurs d. achondrites i. Chicxulub e. coma j. CAIs   chondrites rich in water, other volatiles and organic compounds​

​The ____ of a comet is a lump of fragile, porous material containing ices of water, carbon dioxide, and ammonia.

The function of an enzyme is to ____.​

​Which type of asteroid is classified only slightly red, mostly consisting of an iron-nickel alloy?