At present, timberlands cover 30% of the area, but wooded areas are being lost ____ a regular basis because people are looking for homes, food, and materials.
A. by
B. with
C. at
D. on
Giải bởi Vietjack
Đáp án đúng là: D
on the basis: trên cơ sở/nền tảng
Dịch: Hiện tại, rừng cây bao phủ 30% diện tích, nhưng diện tích cây cối đang bị mất đi thường xuyên vì mọi người đang tìm kiếm nhà cửa, thức ăn và vật liệu.
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Consumption of fossil fuels at an alarming rate can ____ to global warming which can further result in melting of polar ice caps and increase in sea levels.
Deforestation simply means clearing of the green cover and making that land available ____ residential, industrial or commercial purpose.
As the human population grows and grows, natural resources are being used at a rapid rate, and large areas of forest are being converted ____ human use.
Depletion of the crucial Ozone layer of the atmosphere is ____ to pollution caused by Chlorine and Bromide found in Chlorofloro carbons (CFC's).
Land pollution can have huge environmental impact ____ the form of air pollution and soil pollution which in turn can have adverse effect on human health.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.
Burning yard waste releases mold spores, soot, and other contaminants that can aggravate allergies and cause ____ problems.
Modern day agriculture practices ____ chemical products like pesticides and fertilizers to deal with local pests.
The ozone layer is an invisible layer of protection around the planet that protects us ____ the sun's harmful rays.
By using the environment sustainably, the environment and the natural resources ____ provides will not be depleted or destroyed permanently - and will be available for human use for a very long time.
Acid rain can be caused due to combustion of fossil fuels or erupting volcanoes or rotting vegetation which ____ sulfur dioxide and nitrogen oxides into the atmosphere.
Preservationists believe that humans can have access to the land, but they should only utilize it for ____ natural beauty and inspiration.
Landfills are generated due to large amount of waste that is generated ____ households, industries and healthcare centers every day.
The number of inhabitants on the planet ____ arriving at unsustainable levels as it confronts deficiency of assets like water, fuel and food.
Radioactive waste is considered ____ harmful for humans, plants, animals and surrounding environment.
Fossil fuel utilization brings about discharge of greenhouse gases, _______ causes environmental change.
