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tensa zangetsu [6.8K]
3 years ago
6

The U.S. has sent unmanned spacecraft to _____ the planets in our solar system. A. all B. most C. some D. none of

Biology
2 answers:
Mandarinka [93]3 years ago
5 0
<h3>Answer:  A. all</h3>

Every planet in our solar system has been visited by an unmaned spacecraft sent by the United States. The launch years are given in this order

  • Venus (1962)
  • Mars (1964)
  • Mercury (1973)
  • Jupiter (1977)
  • Saturn (1977)
  • Uranus (1977)
  • Neptune (1977)
  • Pluto (2006)
galina1969 [7]3 years ago
3 0

Answer:c some

Explanation:

only a couple of planets have had unmanned spacecraft sent to them

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5 0
3 years ago
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ह<br>प्रश्न 2. श्वसन कितने प्रकार का होता है ?​
timofeeve [1]

Answer:

tतीन प्रकार के श्वसन में आंतरिक, बाहरी और सेलुलर श्वसन शामिल हैं।

बाहरी श्वसन श्वास प्रक्रिया है। ...

आंतरिक श्वसन रक्त और शरीर की कोशिकाओं के बीच गैस विनिमय शामिल है।

सेलुलर श्वसन ऊर्जा के लिए भोजन के रूपांतरण शामिल है

Explanation:

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