True should be the answer.
Answer:
mutualism and parasitism
Examples:
mutualism: crocodiles and birds
parasitism: mosquitoes and humans
Answer:
D: 4.6 x 
Explanation:
4.6 x 10^{9} = 4,600,000,000
Earth is approximately, 4.6 billion = 4,600,000,000 = 4.6 x 10^{9}
Where’s the list? Put it and I’ll help.
Answer:
composite volcanoes, or stratovolcanoes, are formed though the collision of Oceanic and continental plate boundaries.