Answer: The correct answer is B. He could add insulation to the aquarium so that it does not exchange energy with its surroundings.
Explanation-
Isolated system is a system in which there is no exchange of energy and mass. As per the question, heat is radiated from the aquarium. In order to make it an isolated system, insulating or diathermic cover is used over it so that it does not exchange energy with its surroundings.
Answer:
The above statement means that the process of job-seeking requires so much effort that it is like a job itself. You have to be as committed to job- seeking as you will have to be when you actually get a job. The process of job- seeking is tiresome in today's world, especially for people who have a little or no experience at all. You have to be attentive for every new job- opening and work hard to submit your resumes, forms etc. The, you have to work hard for the interviews being conducted. The waiting process also takes a lot of time and patience. Hence, the process of job-seeking is just like a job itself.
Answer:
I think the answer would be A
Answer: Carbon Dioxide, Nitrogen, Argon, and oxygen.
Explanation: Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements.
