What are some of the consequences of atmospheric warming?
What will be an ideal response?
Scientists predict:1. additional melting of ice and snow2. melting of permafrost3. rising sea levels that will threaten coastal land, fishing, food production, and freshwater aquifers4. ocean acidification5. increased frequency of severe drought6. increased likelihood of extreme weather7. threats to species, habitats and large-scale ecosystems8. decline in food production9. threats to human health and economies
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A projectile that is fired vertically at 11.2 km/s from Earth's surface will
A. escape from Earth. B. go into circular orbit about Earth. C. rise and fall back to Earth's surface. D. follow an uncertain path.
The world's longest mountain range is
A) the Rockies/Andes Mountain system. B) the Himalayas. C) the north-south system of mountains in Eastern Africa. D) beneath the ocean.
Which type of agriculture is found primarily in less developed countries?
A) Mediterranean B) plantation C) truck farming D) commercial gardening E) None of these is found in LDCs; they are all commercial agriculture.
Soils renew at a rate that is much slower than the rate by which they presently erode.
Answer the following statement true (T) or false (F)