Tenses Worksheet For Classes 9 And 10 CBSE

Fill in the blanks with the appropriate form of the verb.

Hint: Use the simple present to talk about facts.

Class 10 English Grammar Worksheets | Tenses Worksheets

Predicting when solar storms ………1………… (occur / are occurring / have occurred) is important because magnetic eruptions on the sun can knock out power grids on Earth and ………2……….. (interfere / interfering / interferes) with satellites orbiting the planet. Knowing that storms are coming could help us better …………3………. (prepare / preparing / prepared) for them.

The sun is a lot more than a giant ball of hot gas. Its surface ………4……….. (is / was / has) speckled with dark spots and roiled by energy-packed storms that ………5………… (shots / shoots / shoot) out massive clouds of charged particles and magnetic fields.

Solar storms …………6…… (have occurred / occur / are occurring) due to the movement of electrically charged gas called plasma across the surface of the sun and through its fiery insides. As the plasma …………7………. (is moving / moves / has moves), it carries magnetic fields that join together and break apart. Sometimes, these fields …………8………… (release / are releasing / have released) huge amounts of energy from within a sunspot, creating storms.

Solution

Predicting when solar storms occur is important because magnetic eruptions on the sun can knock out power grids on Earth and interfere with satellites orbiting the planet. Knowing that storms are coming could help us better prepare for them.

The sun is a lot more than a giant ball of hot gas. Its surface is speckled with dark spots and roiled by energy-packed storms that shoot out massive clouds of charged particles and magnetic fields.

Solar storms occur due to the movement of electrically charged gas called plasma across the surface of the sun and through its fiery insides. As the plasma moves, it carries magnetic fields that join together and break apart. Sometimes, these fields release huge amounts of energy from within a sunspot, creating storms.