Spacecraft must have shields to protect the from

friction caused moving through the atmosphere

heat builds up generated by solar power

collision with other objects like comets

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

Refer to this portion of a dichotomous key to answer the question.1. (a) has a single dorsal fin  ®  5          (b) has a double dorsal fin  ®  25. (a) has a small fin on back near tail  ®  6          (b) has no fin on back near tail  ®  76. (a) has barbs near the mouth  ®  catfish          (b) does not have barbs near the mouth  ®  107. (a) tail is asymmetrical  ®  sturgeon      (b) tail is symmetrical  ®  8what would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical? sturgeongo to step 8go tp step 2catfish.mark this and return

How to measure the temperature of a cat?