Desert plants require less care and are more attractive than house plants.
Giải chi tiết:
Đáp án là D. care: sự quan tâm >< inattention: sự không chú ý, lơ đãng
non-interference: trạng thái bất can thiệp ; misapprehension:hiểu nhầm; disqualification: sự bất lực;
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
Population growth rates vary among regions and even among countries within the same region.
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.