Fill in the blanks with an appropriate form of the verb.<\/p>\n
The greenhouse effect \u2026\u2026.1\u2026\u2026\u2026 when man-made and natural gases \u2026\u2026.2\u2026\u2026.. on earth enter the atmosphere and trap energy from the sun, \u2026\u2026.3\u2026\u2026. the planet\u2019s surface temperature. The major green house gases \u2026\u2026..4\u2026\u2026 carbon dioxide, methane, water vapour and nitrous oxide.<\/p>\n
According to reports global warming \u2026\u2026\u20265\u2026\u2026.. a stage where it is unstoppable. The scientists, however, \u2026\u2026..6\u2026\u2026 leaders to reduce emissions and also to adapt to a warmer world with wilder weather.<\/p>\n
1. (i) caused; (ii) causes; (iii) is caused; (iv) has caused
\n2. (i) produces; (ii) produced; (iii) is produced; (iv) has produced
\n3. (i) raise; (ii) raises; (iii) raising; (iv) raised
\n4. (i) is; (ii) are; (iii) was (iv) were
\n5. (i) is reached; (ii) reached; (iii) has reached; (iv) have reached
\n6. (i) urging; (ii) urge; (iii) urges; (iv) are urging<\/p>\n
Answers<\/strong><\/p>\n The greenhouse effect is caused<\/strong> when man-made and natural gases produced<\/strong> on earth enter the atmosphere and trap energy from the sun, raising<\/strong> the planet\u2019s surface temperature. The major green house gases are<\/strong> carbon dioxide, methane, water vapour and nitrous oxide.<\/p>\n According to reports global warming has reached<\/strong> a stage where it is unstoppable. The scientists, however, urge<\/strong> leaders to reduce emissions and also to adapt to a warmer world with wilder weather.<\/p>\n","protected":false},"excerpt":{"rendered":" Fill in the blanks with an appropriate form of the verb. Class 9 Tenses Worksheet The greenhouse effect \u2026\u2026.1\u2026\u2026\u2026 when man-made and natural gases \u2026\u2026.2\u2026\u2026.. on earth enter the atmosphere and trap energy from...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[675,2947,596,119],"class_list":["post-74532","post","type-post","status-publish","format-standard","hentry","category-class-9-worksheets","tag-class-9-english-grammar-worksheets","tag-class-9-tenses-worksheet","tag-english-grammar-worksheets","tag-tenses-worksheet"],"_links":{"self":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/74532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/comments?post=74532"}],"version-history":[{"count":1,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/74532\/revisions"}],"predecessor-version":[{"id":74533,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/74532\/revisions\/74533"}],"wp:attachment":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/media?parent=74532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/categories?post=74532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/tags?post=74532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}